NTTYY / NTT, Inc. - Depositary Receipt (Common Stock) - Документы SEC, Годовой отчет, Доверенное заявление

NTT, Inc. - Депозитарные расписки (обыкновенные акции)
US ˙ OTCPK ˙ US6546241059

Основная статистика
LEI 353800VHQU5VIXVUA841
CIK 769594
SEC Filings
All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis. These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to NTT, Inc. - Depositary Receipt (Common Stock)
SEC Filings (Chronological Order)
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July 1, 2025 424B3

AMERICAN DEPOSITARY RECEIPT AMERICAN DEPOSITARY SHARES SHARES OF COMMON STOCK NTT INC. (Incorporated under the laws of Japan)

Filed pursuant to Rule 424(b)(3) Registration Statement on Form F-6 Registration No.

June 21, 2023 EX-99.(E)

Certification under Rule 466

Certification under Rule 466 The depositary, JPMorgan Chase Bank, N.A. represents and certifies the following: (1) That it previously had filed a registration statement on Form F-6 (Nippon Telegraph and Telephone Corporation 333-132794) that the Commission declared effective, with terms of deposit identical to the terms of deposit of this registration statement. (2) That its ability to designate t

June 21, 2023 EX-99.(A)

TABLE OF CONTENTS

J.P.Morgan J.P.Morgan TABLE OF CONTENTS Page PARTIES 1 RECITALS 1 Section 1. Certain Definitions (a) ADR Register 1 (b) ADRs; Direct Registration ADRs 1 (c) ADS 2 (d) Beneficial Owner 2 (e) Custodian 2 (f) Deliver, execute, issue et al. 2 (g) Delivery Order 2 (h) Deposited Securities 2 (i) Direct Registration System 3 (j) Holder 3 (k) Securities Act of 1933 3 (l) Securities Exchange Act of 1934 3

June 21, 2023 F-6EF

As filed with the U.S. Securities and Exchange Commission on June 21, 2023

As filed with the U.S. Securities and Exchange Commission on June 21, 2023 Registration No. 333- SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM F-6 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 For Depositary Shares Evidenced by American Depositary Receipts NIPPON DENSHIN DENWA KABUSHIKI KAISHA (Exact name of issuer of deposited securities as specified in its charter) NIP

June 21, 2023 EX-99.(D)

Ziegler, Ziegler & Associates LLP Counselors at Law 570 Lexington Avenue, Suite 2405 New York, New York 10022 (212) 319-7600 Telecopier (212) 319-7605 June 21, 2023

Ziegler, Ziegler & Associates LLP Counselors at Law 570 Lexington Avenue, Suite 2405 New York, New York 10022 (212) 319-7600 Telecopier (212) 319-7605 June 21, 2023 JPMorgan Chase Bank, N.

April 13, 2018 15F-12B

NTT / Nippon Telegraph & Telephone Corp. FORM 15F

Form 15F UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15F CERTIFICATION OF A FOREIGN PRIVATE ISSUER’S TERMINATION OF REGISTRATION OF A CLASS OF SECURITIES UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR ITS TERMINATION OF THE DUTY TO FILE REPORTS UNDER SECTION 13(a) OR SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 1-8910

April 2, 2018 6-K

NTT / Nippon Telegraph & Telephone Corp. FORM 6-K (Current Report of Foreign Issuer)

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of April, 2018 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-C

March 29, 2018 6-K

NTT / Nippon Telegraph & Telephone Corp. FORM 6-K (Current Report of Foreign Issuer)

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of March 2018 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-CH

March 29, 2018 6-K

NTT / Nippon Telegraph & Telephone Corp. FORM 6-K (Current Report of Foreign Issuer)

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of March 2018 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-CH

March 1, 2018 6-K

NTT / Nippon Telegraph & Telephone Corp. FORM 6-K (Current Report of Foreign Issuer)

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of March 2018 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant?s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-CH

February 21, 2018 6-K

NTT / Nippon Telegraph & Telephone Corp. FORM 6-K (Current Report of Foreign Issuer)

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of February 2018 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant?s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1

February 13, 2018 6-K

NTT / Nippon Telegraph & Telephone Corp. FORM 6-K (Current Report of Foreign Issuer)

Form 6-K Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

February 9, 2018 6-K

NTT / Nippon Telegraph & Telephone Corp. FORM 6-K (Current Report of Foreign Issuer)

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of February, 2018 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant?s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI

January 16, 2018 6-K

NTT / Nippon Telegraph & Telephone Corp. FORM 6-K (Current Report of Foreign Issuer)

6-K 1 d414496d6k.htm FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of January 2018 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) OTEMACHI FIRST SQUARE, EAST T

December 11, 2017 6-K

NTT / Nippon Telegraph & Telephone Corp. FORM 6-K (Current Report of Foreign Issuer)

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of December 2017 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant?s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1

December 11, 2017 6-K

NTT / Nippon Telegraph & Telephone Corp. FORM 6-K (Current Report of Foreign Issuer)

6-K 1 d502348d6k.htm FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of December 2017 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) OTEMACHI FIRST SQUARE, EAST

December 11, 2017 6-K

NTT / Nippon Telegraph & Telephone Corp. FORM 6-K (Current Report of Foreign Issuer)

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of December, 2017 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant?s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI

December 1, 2017 6-K

NTT / Nippon Telegraph & Telephone Corp. FORM 6-K (Current Report of Foreign Issuer)

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of December, 2017 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant?s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI

November 13, 2017 6-K

NTT / Nippon Telegraph & Telephone Corp. FORM 6-K (Current Report of Foreign Issuer)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of November, 2017 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-CHOME C

November 13, 2017 6-K

NTT / Nippon Telegraph & Telephone Corp. FORM 6-K (Current Report of Foreign Issuer)

FORM 6-K Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

November 13, 2017 6-K

NTT / Nippon Telegraph & Telephone Corp. FORM 6-K (Current Report of Foreign Issuer)

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of November, 2017 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant?s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI

November 1, 2017 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of November, 2017 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant?s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI

October 31, 2017 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

6-K 1 d478080d6k.htm FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of October 2017 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) OTEMACHI FIRST SQUARE, EAST T

September 25, 2017 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of September, 2017 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant?s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI

August 7, 2017 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

Form 6-K Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

August 4, 2017 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

6-K 1 d411215d6k.htm FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of August, 2017 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) OTEMACHI FIRST SQUARE, EAST T

June 28, 2017 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

6-K 1 d419063d6k.htm FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of June, 2017 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) OTEMACHI FIRST SQUARE, EAST TOW

June 28, 2017 EX-13.1

Nippon Telegraph and Telephone Corporation Certification Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (18 U.S.C. Section 1350)

Chief Executive Officer's Certification Pursuant to Rule 13a-14(b) Exhibit 13.1 Nippon Telegraph and Telephone Corporation Certification Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (18 U.S.C. Section 1350) Pursuant to the requirements of Section 906 of the Sarbanes-Oxley Act of 2002 (18 U.S.C. Sections 1350(a) and (b)), the undersigned hereby certifies as follows: 1. I, Hiroo Unoura,

June 28, 2017 EX-12.1

/s/ HIROO UNOURA

Chief Executive Officer's Certification Pursuant to Rule 13a-14(a) Exhibit 12.1 CERTIFICATIONS I, Hiroo Unoura, certify that: 1. I have reviewed this annual report on Form 20-F of Nippon Telegraph and Telephone Corporation; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light

June 28, 2017 EX-12.2

/s/ JUN SAWADA

Chief Financial Officer's Certification Pursuant to Rule 13a-14(a) Exhibit 12.2 CERTIFICATIONS I, Jun Sawada, certify that: 1. I have reviewed this annual report on Form 20-F of Nippon Telegraph and Telephone Corporation; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of

June 28, 2017 EX-13.2

Nippon Telegraph and Telephone Corporation Certification Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (18 U.S.C. Section 1350)

Exhibit 13.2 Nippon Telegraph and Telephone Corporation Certification Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (18 U.S.C. Section 1350) Pursuant to the requirements of Section 906 of the Sarbanes-Oxley Act of 2002 (18 U.S.C. Sections 1350(a) and (b)), the undersigned hereby certifies as follows: 1. I, Jun Sawada, am the Chief Financial Officer of Nippon Telegraph and Telephone Cor

June 28, 2017 20-F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 20-F ☐ REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 or ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES

ANNUAL REPORT Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.

May 31, 2017 EX-1.01

NTT Group’s Conflict Minerals Report Pursuant to the Securities Exchange Act of 1934, Rule 13p-1

EX-1.01 Exhibit 1.01 NTT Group?s Conflict Minerals Report Pursuant to the Securities Exchange Act of 1934, Rule 13p-1 This report is NTT Group?s Conflict Minerals Report for 2016, in accordance with the provisions of Rule 13p-1 of the Securities Exchange Act of 1934 (?Rule 13p-1?). However, this report excludes conflict minerals that were located outside of the supply chain of NTT Group prior to J

May 31, 2017 SD

Nippon Telegraph & Telephone FORM SD

Form SD UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Exact name of the registrant as specified in its charter) JAPAN 1-8910 (State or other jurisdiction of incorporation or organization) (Commission File Number) (IRS Employer Identification No.) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMAC

May 16, 2017 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of May 2017 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant?s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-CHOM

May 15, 2017 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of May, 2017 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant?s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-CHO

May 1, 2017 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of May 2017 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant?s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-CHOM

April 27, 2017 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of April 2017 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant?s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-CH

April 27, 2017 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of April 2017 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant?s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-CH

April 13, 2017 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of April, 2017 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant?s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-C

April 3, 2017 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of April, 2017 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant?s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-C

April 3, 2017 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of April 2017 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant?s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-CH

April 3, 2017 EX-99.(E)

Certification under Rule 466

Certification under Rule 466 The depositary, JPMorgan Chase Bank, N.A. represents and certifies the following: (1) That it previously had filed a registration statement on Form F-6 (Nippon Telegraph and Telephone Corporation 333-132794) that the Commission declared effective, with terms of deposit identical to the terms of deposit of this registration statement. (2) That its ability to designate t

April 3, 2017 EX-99.(A)

TABLE OF CONTENTS

J.P.Morgan J.P.Morgan TABLE OF CONTENTS Page PARTIES 1 RECITALS 1 Section 1. Certain Definitions (a) ADR Register 1 (b) ADRs; Direct Registration ADRs 1 (c) ADS 2 (d) Custodian 2 (e) Deliver, execute, issue et al. 2 (f) Delivery Order 2 (g) Deposited Securities 2 (h) Direct Registration System 2 (i) Holder 2 (j) Securities Act of 1933 2 (k) Securities Exchange Act of 1934 2 (l) Shares 3 (m) Transf

April 3, 2017 F-6 POS

As filed with the Securities and Exchange Commission on April 3, 2017 SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 POST-EFFECTIVE AMENDMENT NO. 4 TO FORM F-6 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 For Depositary Shares E

F-6 POS 1 e615980f6pos-nippon.htm 333-132794 As filed with the Securities and Exchange Commission on April 3, 2017 SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 POST-EFFECTIVE AMENDMENT NO. 4 TO FORM F-6 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 For Depositary Shares Evidenced by American Depositary Receipts NIPPON DENSHIN DENWA KABUSHIKI KAISHA (Exact name of issuer of d

March 21, 2017 25

Nippon Telegraph & Telephone FORM 25

Form 25 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 25 NOTIFICATION OF REMOVAL FROM LISTING AND/OR REGISTRATION UNDER SECTION 12(b) OF THE SECURITIES EXCHANGE ACT OF 1934. Commission File Number: 1-8910 NIPPON DENSHIN DENWA KABUSHIKI KAISHA (New York Stock Exchange) (Exact name of Issuer as specified in its charter, and name of Exchange where security is listed and

March 9, 2017 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of March 2017 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant?s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-CH

March 8, 2017 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of March 2017 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant?s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-CH

March 1, 2017 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of March 2017 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant?s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-CHOME CHIYO

March 1, 2017 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of March, 2017 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-C

February 23, 2017 EX-99.(A)(4)

AMENDMENT NO. 3 TO DEPOSIT AGREEMENT

Unassociated Document AMENDMENT NO. 3 TO DEPOSIT AGREEMENT AMENDMENT NO. 3, dated as of , 2017 (the "Amendment"), to the Deposit Agreement dated as of July 8, 1994 (as previously amended and as amended hereby, the "Deposit Agreement"), among Nippon Telegraph and Telephone Corporation, incorporated under the laws of Japan (the "Company"), JPMorgan Chase Bank, N.A. (fka Morgan Guaranty Trust Company

February 23, 2017 EX-99.(E)

Certification under Rule 466 The depositary, JPMorgan Chase Bank, N.A. represents and certifies the following: (1) That it previously had filed a registration statement on Form F-6 (Nippon Telegraph and Telephone Corporation 333-132794) that the Comm

Unassociated Document Certification under Rule 466 The depositary, JPMorgan Chase Bank, N.

February 23, 2017 F-6 POS

Nippon Telegraph & Telephone POS

F-6 POS 1 e615825f6pos-ntt.htm 333-132794 As filed with the Securities and Exchange Commission on February 23, 2017 SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 POST-EFFECTIVE AMENDMENT NO. 3 TO FORM F-6 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 For Depositary Shares Evidenced by American Depositary Receipts NIPPON DENSHIN DENWA KABUSHIKI KAISHA (Exact name of issuer of

February 13, 2017 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of February, 2017 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI

February 13, 2017 SC 13G/A

DCM / NTT DOCOMO, Inc. / NIPPON TELEGRAPH & TELEPHONE CORP - SCHEDULE 13G AMENDMENT NO.5 Passive Investment

SC 13G/A 1 d311775dsc13ga.htm SCHEDULE 13G AMENDMENT NO.5 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 5)* NTT DOCOMO, INC. (Name of Issuer) Common Stock (Title of Class of Securities) Not Applicable (see Item 2(e) herein) (CUSIP Number) December 31, 2016 (Date of Event Which Requires Filing of this St

February 10, 2017 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of February, 2017 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI

February 10, 2017 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of February, 2017 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI

February 1, 2017 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of February, 2017 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI

January 4, 2017 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of January, 2017 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant?s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-CHOME CH

December 12, 2016 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of December, 2016 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant?s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-CHOME C

November 14, 2016 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of November 2016 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant?s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-CHOME CH

November 14, 2016 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of November, 2016 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI

November 4, 2016 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of November 2016 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1

November 3, 2016 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of November 2016 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant?s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-CHOME CH

August 8, 2016 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of August 2016 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-C

August 5, 2016 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of August, 2016 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-

July 8, 2016 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of July, 2016 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-CH

June 30, 2016 EX-12.2

/s/ JUN SAWADA

Chief Financial Officer's Certification Pursuant to Rule 13a-14(a) Exhibit 12.2 CERTIFICATIONS I, Jun Sawada, certify that: 1. I have reviewed this annual report on Form 20-F of Nippon Telegraph and Telephone Corporation; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of

June 30, 2016 EX-12.1

/s/ HIROO UNOURA

Chief Executive Officer's Certification Pursuant to Rule 13a-14(a) Exhibit 12.1 CERTIFICATIONS I, Hiroo Unoura, certify that: 1. I have reviewed this annual report on Form 20-F of Nippon Telegraph and Telephone Corporation; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light

June 30, 2016 EX-13.1

Nippon Telegraph and Telephone Corporation Certification Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (18 U.S.C. Section 1350)

Chief Executive Officer's Certification Pursuant to Rule 13a-14(b) Exhibit 13.1 Nippon Telegraph and Telephone Corporation Certification Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (18 U.S.C. Section 1350) Pursuant to the requirements of Section 906 of the Sarbanes-Oxley Act of 2002 (18 U.S.C. Sections 1350(a) and (b)), the undersigned hereby certifies as follows: 1. I, Hiroo Unoura,

June 30, 2016 20-F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 20-F ¨ REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 or x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES

ANNUAL REPORT Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.

June 30, 2016 EX-13.2

Nippon Telegraph and Telephone Corporation Certification Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (18 U.S.C. Section 1350)

Chief Financial Officer's Certification Pursuant to Rule 13a-14(b) Exhibit 13.2 Nippon Telegraph and Telephone Corporation Certification Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (18 U.S.C. Section 1350) Pursuant to the requirements of Section 906 of the Sarbanes-Oxley Act of 2002 (18 U.S.C. Sections 1350(a) and (b)), the undersigned hereby certifies as follows: 1. I, Jun Sawada, a

June 27, 2016 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of June, 2016 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-CH

June 24, 2016 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of June, 2016 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-CH

June 14, 2016 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of June 2016 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-CHO

June 13, 2016 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of June, 2016 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-CH

June 6, 2016 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of June, 2016 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) OTEMACHI FIRST SQUARE, EAST TOWER, 5-1, OTEMACHI 1-C

May 31, 2016 EX-1.01

NTT Group’s Conflict Minerals Report Pursuant to the Securities Exchange Act of 1934, Rule 13p-1

EX-1.01 Exhibit 1.01 NTT Group?s Conflict Minerals Report Pursuant to the Securities Exchange Act of 1934, Rule 13p-1 This report is NTT Group?s Conflict Minerals Report for 2015, in accordance with the provisions of Rule 13p-1 of the Securities Exchange Act of 1934 (?Rule 13p-1?). However, this report excludes conflict minerals that were located outside of the supply chain of NTT Group prior to J

May 31, 2016 SD

Nippon Telegraph & Telephone FORM SD

Form SD UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Exact name of the registrant as specified in its charter) JAPAN 1-8910 (State or other jurisdiction of incorporation or organization) (Commission File Number) (IRS Employer Identification No.) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMAC

May 17, 2016 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of May, 2016 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-CHOME CHIYOD

May 13, 2016 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of May 2016 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant?s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-CHOM

May 13, 2016 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of May, 2016 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant?s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-CHO

May 11, 2016 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of May 2016 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant?s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-CHOM

May 10, 2016 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

6-K 1 d175475d6k.htm FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of May 2016 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) OTEMACHI FIRST SQUARE, EAST TOWER

May 10, 2016 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of May 2016 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant?s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-CHOM

April 28, 2016 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of April 2016 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant?s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-CH

April 27, 2016 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of April 2016 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant?s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-CH

April 1, 2016 CORRESP

Nippon Telegraph & Telephone ESP

Correspondence April 1, 2016 VIA EDGAR Carlos Pacho Senior Associate Chief Accountant AD Office 11 - Telecommunications, Securities and Exchange Commission 100 F Street, N.

March 29, 2016 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of March 2016 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant?s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-CH

March 8, 2016 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of March 2016 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant?s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-CH

March 1, 2016 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of March 2016 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant?s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-CH

February 8, 2016 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of February 2016 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant?s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1

February 5, 2016 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of February 2016 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1

February 5, 2016 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of February 2016 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-CHOME CH

February 5, 2016 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

6-K 1 d117121d6k.htm FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of February 2016 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) OTEMACHI FIRST SQUARE, EAST

February 5, 2016 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of February 2016 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-CHOME CH

November 9, 2015 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of November 2015 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant?s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1

November 6, 2015 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of November, 2015 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI

November 6, 2015 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of November, 2015 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant?s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI

November 6, 2015 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of November, 2015 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant?s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI

October 1, 2015 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of October, 2015 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant?s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1

September 1, 2015 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of September, 2015 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant?s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI

August 6, 2015 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of August, 2015 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant?s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-

August 5, 2015 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of August, 2015 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant?s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-

August 5, 2015 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of August, 2015 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-CHOME CHI

June 30, 2015 EX-1.3

(TRANSLATION) REGULATIONS OF BOARD OF DIRECTORS NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Amended Regulations of Board of Directors Exhibit 1.3 (TRANSLATION) REGULATIONS OF BOARD OF DIRECTORS OF NIPPON TELEGRAPH AND TELEPHONE CORPORATION Established on March 28, 1985 Most recently revised on May 1, 2015 Article 1. (Purpose) Unless otherwise provided by laws or regulations or the Articles of Incorporation, any matters with respect to conduct of the Board of Directors (hereinafter the “B

June 30, 2015 EX-13.1

Nippon Telegraph and Telephone Corporation Certification Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (18 U.S.C. Section 1350)

Chief Executive Officer's Certification Pursuant to Rule 13a-14(b) Exhibit 13.1 Nippon Telegraph and Telephone Corporation Certification Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (18 U.S.C. Section 1350) Pursuant to the requirements of Section 906 of the Sarbanes-Oxley Act of 2002 (18 U.S.C. Sections 1350(a) and (b)), the undersigned hereby certifies as follows: 1. I, Hiroo Unoura,

June 30, 2015 EX-13.2

Nippon Telegraph and Telephone Corporation Certification Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (18 U.S.C. Section 1350)

Chief Financial Officer's Certification Pursuant to Rule 13a-14(b) Exhibit 13.2 Nippon Telegraph and Telephone Corporation Certification Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (18 U.S.C. Section 1350) Pursuant to the requirements of Section 906 of the Sarbanes-Oxley Act of 2002 (18 U.S.C. Sections 1350(a) and (b)), the undersigned hereby certifies as follows: 1. I, Jun Sawada, a

June 30, 2015 20-F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 20-F ¨ REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 or x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES

Annual Report Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.

June 30, 2015 EX-12.2

/s/ JUN SAWADA

Exhibit 12.2 CERTIFICATIONS I, Jun Sawada, certify that: 1. I have reviewed this annual report on Form 20-F of Nippon Telegraph and Telephone Corporation; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misle

June 30, 2015 EX-1.1

ARTICLES OF INCORPORATION NIPPON TELEGRAPH AND TELEPHONE CORPORATION CHAPTER I. GENERAL PROVISIONS

Exhibit 1.1 (TRANSLATION) Approved on March 23, 1985 Amendment approved on June 26, 1986 June 29, 1988 June 27, 1991 June 29, 1994 June 29, 1995 June 29, 1999 June 29, 2000 June 27, 2002 June 27, 2003 June 29, 2004 June 28, 2006 June 25, 2008 June 24, 2009 June 26, 2015 ARTICLES OF INCORPORATION OF NIPPON TELEGRAPH AND TELEPHONE CORPORATION CHAPTER I. GENERAL PROVISIONS Article 1. (Corporate Name)

June 30, 2015 EX-12.1

/s/ HIROO UNOURA

Chief Executive Officer's Certification Pursuant to Rule 13a-14(a) Exhibit 12.1 CERTIFICATIONS I, Hiroo Unoura, certify that: 1. I have reviewed this annual report on Form 20-F of Nippon Telegraph and Telephone Corporation; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light

June 29, 2015 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of June, 2015 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant?s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-CH

June 22, 2015 F-6 POS

333-132794 As filed with the Securities and Exchange Commission on June 22, 2015 SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ____________________ POST-EFFECTIVE AMENDMENT NO. 2 TO FORM F-6 REGISTRATION STATEMENT UNDER THE SECURITIES ACT

F-6 POS 1 e613824f6pos-nttc.htm 333-132794 As filed with the Securities and Exchange Commission on June 22, 2015 SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 POST-EFFECTIVE AMENDMENT NO. 2 TO FORM F-6 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 For Depositary Shares Evidenced by American Depositary Receipts NIPPON DENSHIN DENWA KABUSHIKI KAISHA (Exact name of issuer of dep

June 22, 2015 EX-99.(E)

Certification under Rule 466

Certification under Rule 466 The depositary, JPMorgan Chase Bank, N.A. represents and certifies the following: (1) That it previously had filed a registration statement on Form F-6 (Nippon Telegraph and Telephone Corporation 333-132794) that the Commission declared effective, with terms of deposit identical to the terms of deposit of this registration statement. (2) That its ability to designate t

June 22, 2015 EX-99.(A)(3)

AMENDMENT NO. 2 TO DEPOSIT AGREEMENT

AMENDMENT NO. 2 TO DEPOSIT AGREEMENT AMENDMENT NO. 2, dated as of June , 2015 (the ?Amendment?), to the Deposit Agreement dated as of July 8, 1994 (as previously amended and as amended hereby, the ?Deposit Agreement?), among Nippon Telegraph and Telephone Corporation, incorporated under the laws of Japan (the "Company"), JPMorgan Chase Bank, N.A. (fka Morgan Guaranty Trust Company of New York), as

May 29, 2015 EX-1.01

NTT Group’s Conflict Minerals Report Pursuant to the Securities Exchange Act of 1934, Rule 13p-1

EX-1.01 Exhibit 1.01 NTT Group?s Conflict Minerals Report Pursuant to the Securities Exchange Act of 1934, Rule 13p-1 This report is NTT Group?s Conflict Minerals Report for 2014, in accordance with the provisions of Rule 13p-1 of the Securities Exchange Act of 1934 (?Rule 13p-1?). However, this report excludes conflict minerals that were located outside of the supply chain of NTT Group prior to J

May 29, 2015 SD

Nippon Telegraph & Telephone FORM SD

Form SD UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT NIPPON DENSHIN DENWA KABUSHIKI KAISHA (Exact Name of Registrant as Specified in its Charter) NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of Registrant?s Name into English) JAPAN 1-8910 Not applicable (State or other jurisdiction of incorporation or organization) (Commis

May 26, 2015 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of May, 2015 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant?s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-CHO

May 15, 2015 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of May, 2015 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant?s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-CHOME CHIYOD

May 15, 2015 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of May, 2015 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-CHO

May 15, 2015 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of May, 2015 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant?s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-CHO

May 15, 2015 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of May, 2015 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant?s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-CHO

May 12, 2015 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of May, 2015 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant?s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-CHO

April 28, 2015 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of April, 2015 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant?s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-C

April 28, 2015 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of April, 2015 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant?s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-C

April 24, 2015 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of April, 2015 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant?s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-C

April 15, 2015 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of April, 2015 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant?s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-C

March 9, 2015 6-K

Nippon Telegraph & Telephone FORM 6-K (Current Report of Foreign Issuer)

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of March, 2015 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant?s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-C

March 3, 2015 6-K

NTT / Nippon Telegraph & Telephone Corp. 6-K - Current Report of Foreign Issuer - FORM 6-K

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of March, 2015 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-C

March 2, 2015 6-K

NTT / Nippon Telegraph & Telephone Corp. 6-K - Current Report of Foreign Issuer - FORM 6-K

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of March, 2015 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-C

February 27, 2015 6-K

NTT / Nippon Telegraph & Telephone Corp. 6-K - Current Report of Foreign Issuer - FORM 6-K

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of February, 2015 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI

February 13, 2015 SC 13G/A

DCM / NTT DOCOMO, Inc. / NIPPON TELEGRAPH & TELEPHONE CORP - SCHEDULE 13G AMENDMENT NO.4 Passive Investment

SCHEDULE 13G Amendment No.4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 4)* NTT DOCOMO, INC. (Name of Issuer) Common Stock (Title of Class of Securities) Not Applicable (see Item 2(e) herein) (CUSIP Number) December 31, 2014 (Date of Event Which Requires Filing of this Statement) Check the appropriate

February 9, 2015 6-K

NTT / Nippon Telegraph & Telephone Corp. 6-K - Current Report of Foreign Issuer - FORM 6-K

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of February, 2015 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI

February 6, 2015 6-K

NTT / Nippon Telegraph & Telephone Corp. 6-K - Current Report of Foreign Issuer - FORM 6-K

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of February, 2015 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI

February 2, 2015 6-K

NTT / Nippon Telegraph & Telephone Corp. 6-K - Current Report of Foreign Issuer - FORM 6-K

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of February, 2015 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI

January 5, 2015 6-K

NTT / Nippon Telegraph & Telephone Corp. 6-K - Current Report of Foreign Issuer - FORM 6-K

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of January, 2015 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1

November 28, 2014 6-K

NTT / Nippon Telegraph & Telephone Corp. 6-K - Current Report of Foreign Issuer - FORM 6-K

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of November, 2014 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI

November 28, 2014 6-K

NTT / Nippon Telegraph & Telephone Corp. 6-K - Current Report of Foreign Issuer - FORM 6-K

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of November, 2014 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI

November 14, 2014 6-K

NTT / Nippon Telegraph & Telephone Corp. 6-K - Current Report of Foreign Issuer - FORM 6-K

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of November, 2014 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI

November 13, 2014 6-K

NTT / Nippon Telegraph & Telephone Corp. 6-K - Current Report of Foreign Issuer - FORM 6-K

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of November, 2014 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI

November 10, 2014 6-K

NTT / Nippon Telegraph & Telephone Corp. 6-K - Current Report of Foreign Issuer - FORM 6-K

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of November, 2014 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI

November 7, 2014 6-K

NTT / Nippon Telegraph & Telephone Corp. 6-K - Current Report of Foreign Issuer - FORM 6-K

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of November, 2014 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI

November 7, 2014 6-K

NTT / Nippon Telegraph & Telephone Corp. 6-K - Current Report of Foreign Issuer - FORM 6-K

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of November, 2014 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI

September 4, 2014 6-K

NTT / Nippon Telegraph & Telephone Corp. 6-K - Current Report of Foreign Issuer - FORM 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of September, 2014 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-CHOME

August 7, 2014 6-K

NTT / Nippon Telegraph & Telephone Corp. 6-K - Current Report of Foreign Issuer - FORM 6-K

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of August 2014 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-C

August 6, 2014 6-K

NTT / Nippon Telegraph & Telephone Corp. 6-K - Current Report of Foreign Issuer - FORM 6-K

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of August, 2014 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-

August 6, 2014 6-K

NTT / Nippon Telegraph & Telephone Corp. 6-K - Current Report of Foreign Issuer - FORM 6-K

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of August, 2014 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-

June 30, 2014 EX-12.1

/s/ HIROO UNOURA

Chief Executive Officer's Certification Pursuant to Rule 13a-14(a) Exhibit 12.1 CERTIFICATIONS I, Hiroo Unoura, certify that: 1. I have reviewed this annual report on Form 20-F of Nippon Telegraph and Telephone Corporation; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light

June 30, 2014 EX-12.2

/s/ JUN SAWADA

Chief Financial Officer's Certification Pursuant to Rule 13a-14(a) Exhibit 12.2 CERTIFICATIONS I, Jun Sawada, certify that: 1. I have reviewed this annual report on Form 20-F of Nippon Telegraph and Telephone Corporation; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of

June 30, 2014 20-F

NTT / Nippon Telegraph & Telephone Corp. 20-F - - ANNUAL REPORT

Annual Report Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.

June 30, 2014 EX-13.1

Nippon Telegraph and Telephone Corporation Certification Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (18 U.S.C. Section 1350)

Chief Executive Officer's Certification Pursuant to Rule 13a-14(b) Exhibit 13.1 Nippon Telegraph and Telephone Corporation Certification Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (18 U.S.C. Section 1350) Pursuant to the requirements of Section 906 of the Sarbanes-Oxley Act of 2002 (18 U.S.C. Sections 1350(a) and (b)), the undersigned hereby certifies as follows: 1. I, Hiroo Unoura,

June 30, 2014 EX-13.2

Nippon Telegraph and Telephone Corporation Certification Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (18 U.S.C. Section 1350)

Chief Financial Officer's Certification Pursuant to Rule 13a-14(b) Exhibit 13.2 Nippon Telegraph and Telephone Corporation Certification Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (18 U.S.C. Section 1350) Pursuant to the requirements of Section 906 of the Sarbanes-Oxley Act of 2002 (18 U.S.C. Sections 1350(a) and (b)), the undersigned hereby certifies as follows: 1. I, Jun Sawada, a

June 27, 2014 6-K

NTT / Nippon Telegraph & Telephone Corp. 6-K - Current Report of Foreign Issuer - FORM 6-K

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of June, 2014 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-CH

June 11, 2014 6-K/A

Current Report of Foreign Issuer - FORM 6-K/A

FORM 6-K/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K/A Amendment No. 1 Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of June, 2014 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) OTEMACHI FIRST SQUARE, EAST TOWE

June 2, 2014 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of June, 2014 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-CH

May 30, 2014 EX-1.02

NTT Group’s Conflict Minerals Report Pursuant to the Securities Exchange Act of 1934, Rule 13p-1

EX-1.02 Exhibit 1.02 NTT Group’s Conflict Minerals Report Pursuant to the Securities Exchange Act of 1934, Rule 13p-1 This report is NTT Group’s Conflict Minerals Report for 2013, in accordance with the provisions of Rule 13p-1 of the Securities Exchange Act of 1934 (“Rule 13p-1”). However, this report excludes conflict minerals that were located outside of the Supply Chain of NTT Group prior to J

May 30, 2014 SD

- FORM SD

Form SD UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT NIPPON DENSHIN DENWA KABUSHIKI KAISHA (Exact Name of Registrant as Specified in its Charter) NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of Registrant’s Name into English) JAPAN 1-8910 Not applicable (State or other jurisdiction of incorporation or organization) (Commis

May 13, 2014 6-K

Current Report of Foreign Issuer - FORM 6-K

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of May, 2014 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-CHO

May 13, 2014 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of May, 2014 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-CHO

May 13, 2014 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of May, 2014 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-CHO

May 13, 2014 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of May, 2014 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-CHO

May 13, 2014 6-K

Current Report of Foreign Issuer - FORM 6-K

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of May, 2014 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-CHO

April 28, 2014 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of April, 2014 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-C

April 25, 2014 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of April, 2014 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-C

April 11, 2014 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of April, 2014 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-C

March 7, 2014 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of March, 2014 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-C

March 6, 2014 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of March, 2014 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1-C

February 28, 2014 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of February, 2014 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI

February 7, 2014 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of February, 2014 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI

February 6, 2014 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of February, 2014 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI

February 6, 2014 6-K

Current Report of Foreign Issuer - FORM 6-K

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of February, 2014 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI

February 6, 2014 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of February, 2014 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI

February 6, 2014 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of February, 2014 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI

January 21, 2014 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of January, 2014 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) OTEMACHI FIRST SQUARE, EAST TOWER 5-1, OTEMACHI 1

November 12, 2013 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of November, 2013 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) 3-1, OTEMACHI 2-CHOME CHIYODA-KU, TOKYO 100-8116

November 8, 2013 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of November, 2013 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) 3-1, OTEMACHI 2-CHOME CHIYODA-KU, TOKYO 100-8116

November 8, 2013 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of November, 2013 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) 3-1, OTEMACHI 2-CHOME CHIYODA-KU, TOKYO 100-8116

November 8, 2013 6-K

Current Report of Foreign Issuer - FORM 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of November, 2013 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant?s name into English) 3-1, OTEMACHI 2-CHOME CHIYODA-KU, TOKYO 100-8116 JAPAN (A

November 8, 2013 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of November, 2013 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) 3-1, OTEMACHI 2-CHOME CHIYODA-KU, TOKYO 100-8116

October 31, 2013 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of October, 2013 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) 3-1, OTEMACHI 2-CHOME CHIYODA-KU, TOKYO 100-8116

October 28, 2013 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of October, 2013 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) 3-1, OTEMACHI 2-CHOME CHIYODA-KU, TOKYO 100-8116

October 28, 2013 6-K

Current Report of Foreign Issuer - FORM 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of October, 2013 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant?s name into English) 3-1, OTEMACHI 2-CHOME CHIYODA-KU, TOKYO 100-8116 JAPAN (Ad

October 28, 2013 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of October, 2013 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) 3-1, OTEMACHI 2-CHOME CHIYODA-KU, TOKYO 100-8116

October 24, 2013 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of October, 2013 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) 3-1, OTEMACHI 2-CHOME CHIYODA-KU, TOKYO 100-8116

October 1, 2013 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of October, 2013 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) 3-1, OTEMACHI 2-CHOME CHIYODA-KU, TOKYO 100-8116

September 18, 2013 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of September, 2013 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) 3-1, OTEMACHI 2-CHOME CHIYODA-KU, TOKYO 100-811

September 3, 2013 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of September, 2013 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) 3-1, OTEMACHI 2-CHOME CHIYODA-KU, TOKYO 100-811

August 6, 2013 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of August 2013 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) 3-1, OTEMACHI 2-CHOME CHIYODA-KU, TOKYO 100-8116 JA

August 5, 2013 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of August, 2013 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) 3-1, OTEMACHI 2-CHOME CHIYODA-KU, TOKYO 100-8116 J

August 5, 2013 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of August, 2013 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) 3-1, OTEMACHI 2-CHOME CHIYODA-KU, TOKYO 100-8116 J

August 1, 2013 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of August, 2013 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) 3-1, OTEMACHI 2-CHOME CHIYODA-KU, TOKYO 100-8116 J

July 19, 2013 SC 13D/A

IIJI / Internet Initiative Japan, Inc. / NIPPON TELEGRAPH & TELEPHONE CORP - SCHEDULE 13D AMENDMENT NO. 3 Activist Investment

SCHEDULE 13D Amendment No. 3 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Exchange Act of 1934 (Amendment No. 3)* INTERNET INITIATIVE JAPAN INC. (Name of Issuer) Common Stock (Title of Class of Securities) J24210-10-6 (CUSIP Number) Shinji Kume Nippon Telegraph and Telephone Corporation 2-3-1 Otemachi Chiyoda-ku, Tokyo 100-8116, Japan

July 11, 2013 SC 13D/A

IIJI / Internet Initiative Japan, Inc. / NIPPON TELEGRAPH & TELEPHONE CORP - SCHEDULE 13D AMENDMENT NO.2 Activist Investment

Schedule 13D Amendment No.2 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Exchange Act of 1934 (Amendment No. 2)* INTERNET INITIATIVE JAPAN INC. (Name of Issuer) Common Stock (Title of Class of Securities) J24210-10-6 (CUSIP Number) Shinji Kume Nippon Telegraph and Telephone Corporation 2-3-1 Otemachi Chiyoda-ku, Tokyo 100-8116, Japan T

July 1, 2013 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of July, 2013 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) 3-1, OTEMACHI 2-CHOME CHIYODA-KU, TOKYO 100-8116 JAP

June 28, 2013 EX-12.1

/s/ HIROO UNOURA

CHIEF EXECUTIVE OFFICER'S CERTIFICATION PURSUANT TO RULE 13A-14(A) Exhibit 12.1 CERTIFICATIONS I, Hiroo Unoura, certify that: 1. I have reviewed this annual report on Form 20-F of Nippon Telegraph and Telephone Corporation; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light

June 28, 2013 EX-13.2

Nippon Telegraph and Telephone Corporation Certification Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (18 U.S.C. Section 1350)

CHIEF FINANCIAL OFFICER'S CERTIFICATION PURSUANT TO RULE 13A-14(B) Exhibit 13.2 Nippon Telegraph and Telephone Corporation Certification Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (18 U.S.C. Section 1350) Pursuant to the requirements of Section 906 of the Sarbanes-Oxley Act of 2002 (18 U.S.C. Sections 1350(a) and (b)), the undersigned hereby certifies as follows: 1. I, Hiroki Watana

June 28, 2013 EX-15.1

Consent of Independent Registered Public Accounting Firm

Consent of Independent Registered Public Accounting Firm Exhibit 15.1 Consent of Independent Registered Public Accounting Firm The Board of Directors Nippon Telegraph and Telephone Corporation: We consent to the incorporation by reference in the registration statement (No. 333-175237) on Form F-3 of Nippon Telegraph and Telephone Corporation of our reports dated June 28, 2013, with respect to the

June 28, 2013 EX-13.1

Nippon Telegraph and Telephone Corporation Certification Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (18 U.S.C. Section 1350)

CHIEF EXECUTIVE OFFICER'S CERTIFICATION PURSUANT TO RULE 13A-14(B) Exhibit 13.1 Nippon Telegraph and Telephone Corporation Certification Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (18 U.S.C. Section 1350) Pursuant to the requirements of Section 906 of the Sarbanes-Oxley Act of 2002 (18 U.S.C. Sections 1350(a) and (b)), the undersigned hereby certifies as follows: 1. I, Hiroo Unoura,

June 28, 2013 EX-12.2

/s/ HIROKI WATANABE

CHIEF FINANCIAL OFFICER'S CERTIFICATION PURSUANT TO RULE 13A-14(A) Exhibit 12.2 CERTIFICATIONS I, Hiroki Watanabe, certify that: 1. I have reviewed this annual report on Form 20-F of Nippon Telegraph and Telephone Corporation; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in lig

June 28, 2013 20-F

- ANNUAL REPORT

ANNUAL REPORT Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.

June 26, 2013 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of June, 2013 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) 3-1, OTEMACHI 2-CHOME CHIYODA-KU, TOKYO 100-8116 JAP

June 3, 2013 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

June 3, 2013 6-K

Current Report of Foreign Issuer - FORM 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of June, 2013 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) 3-1, OTEMACHI 2-CHOME CHIYODA-KU, TOKYO 100-8116 JAPAN (Addre

May 10, 2013 6-K

Current Report of Foreign Issuer - FORM 6-K

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of May, 2013 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) 3-1, OTEMACHI 2-CHOME CHIYODA-KU, TOKYO 100-8116 JAPA

May 10, 2013 6-K

Current Report of Foreign Issuer - FORM 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of May, 2013 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) 3-1, OTEMACHI 2-CHOME CHIYODA-KU, TOKYO 100-8116 JAPAN (Addres

May 10, 2013 6-K

Current Report of Foreign Issuer - FORM 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of May, 2013 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) 3-1, OTEMACHI 2-CHOME CHIYODA-KU, TOKYO 100-8116 JAPAN (Addres

May 8, 2013 6-K

Current Report of Foreign Issuer - FORM 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of May, 2013 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) 3-1, OTEMACHI 2-CHOME CHIYODA-KU, TOKYO 100-8116 JAPAN (Addres

April 30, 2013 6-K

Current Report of Foreign Issuer - FORM 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of April, 2013 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant?s name into English) 3-1, OTEMACHI 2-CHOME CHIYODA-KU, TOKYO 100-8116 JAPAN (Addr

April 26, 2013 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of April, 2013 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) 3-1, OTEMACHI 2-CHOME CHIYODA-KU, TOKYO 100-8116 JA

April 26, 2013 6-K

Current Report of Foreign Issuer - FORM 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of April, 2013 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) 3-1, OTEMACHI 2-CHOME CHIYODA-KU, TOKYO 100-8116 JAPAN (Addr

March 15, 2013 6-K

Current Report of Foreign Issuer - FORM 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of March, 2013 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) 3-1, OTEMACHI 2-CHOME CHIYODA-KU, TOKYO 100-8116 JAPAN (Addr

March 1, 2013 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of March, 2013 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) 3-1, OTEMACHI 2-CHOME CHIYODA-KU, TOKYO 100-8116 JA

February 28, 2013 6-K

Current Report of Foreign Issuer - FORM 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of February, 2013 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant?s name into English) 3-1, OTEMACHI 2-CHOME CHIYODA-KU, TOKYO 100-8116 JAPAN (A

February 28, 2013 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of February, 2013 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) 3-1, OTEMACHI 2-CHOME CHIYODA-KU, TOKYO 100-8116

February 7, 2013 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of February, 2013 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) 3-1, OTEMACHI 2-CHOME CHIYODA-KU, TOKYO 100-8116

February 6, 2013 6-K

Current Report of Foreign Issuer - FORM 6-K

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of February, 2013 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) 3-1, OTEMACHI 2-CHOME CHIYODA-KU, TOKYO 100-8116

February 6, 2013 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of February, 2013 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) 3-1, OTEMACHI 2-CHOME CHIYODA-KU, TOKYO 100-8116

January 30, 2013 6-K

Current Report of Foreign Issuer - FORM 6-K

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of January, 2013 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) 3-1, OTEMACHI 2-CHOME CHIYODA-KU, TOKYO 100-8116

January 22, 2013 6-K

Current Report of Foreign Issuer - FORM 6-K

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of January, 2013 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) 3-1, OTEMACHI 2-CHOME CHIYODA-KU, TOKYO 100-8116

January 4, 2013 6-K

Current Report of Foreign Issuer - FORM 6-K

6-K 1 d452835d6k.htm FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of January, 2013 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) 3-1, OTEMACHI 2-CHOME CHIYOD

December 3, 2012 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of December, 2012 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) 3-1, OTEMACHI 2-CHOME CHIYODA-KU, TOKYO 100-8116

November 9, 2012 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of November, 2012 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) 3-1, OTEMACHI 2-CHOME CHIYODA-KU, TOKYO 100-8116

November 8, 2012 6-K

Current Report of Foreign Issuer - FORM 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of November, 2012 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant?s name into English) 3-1, OTEMACHI 2-CHOME CHIYODA-KU, TOKYO 100-8116 JAPAN (A

November 8, 2012 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of November, 2012 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) 3-1, OTEMACHI 2-CHOME CHIYODA-KU, TOKYO 100-8116

November 1, 2012 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of November, 2012 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) 3-1, OTEMACHI 2-CHOME CHIYODA-KU, TOKYO 100-8116

October 1, 2012 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of October, 2012 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) 3-1, OTEMACHI 2-CHOME CHIYODA-KU, TOKYO 100-8116

September 19, 2012 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of September, 2012 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) 3-1, OTEMACHI 2-CHOME CHIYODA-KU, TOKYO 100-811

August 7, 2012 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of August 2012 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) 3-1, OTEMACHI 2-CHOME CHIYODA-KU, TOKYO 100-8116 JA

August 6, 2012 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of August, 2012 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) 3-1, OTEMACHI 2-CHOME CHIYODA-KU, TOKYO 100-8116 J

July 11, 2012 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of July, 2012 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) 3-1, OTEMACHI 2-CHOME CHIYODA-KU, TOKYO 100-8116 JAP

July 11, 2012 FWP

NIPPON TELEGRAPH AND TELEPHONE CORPORATION Final Pricing Term Sheet Issuer: Nippon Telegraph and Telephone Corporation Expected Ratings:* Moody’s : Aa2 S&P : AA Format: SEC-Registered Security Type: Senior Debt Securities Ranking: Direct, unsubordina

Free Writing Prospectus Issuer Free Writing Prospectus Filed by: Nippon Telegraph and Telephone Corporation Pursuant to Rule 433 under the Securities Act of 1933 Registration Statement No.

July 11, 2012 424B2

Subject to Completion Preliminary Prospectus Supplement dated July 10, 2012

Preliminary Prospectus Supplement Table of Contents The information in this preliminary prospectus supplement is not complete and may be changed.

July 11, 2012 EX-12

STATEMENT OF COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES Year Ended March 31, 2012 Millions of yen Earnings: pre-tax income from continuing operations before adjustment for income or loss from equity investees 1,239,330 Fixed charges 70,536 amo

Computation of Consolidated Ratio of Earnings to Fixed Charges Exhibit 12 STATEMENT OF COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES Year Ended March 31, 2012 Millions of yen Earnings: pre-tax income from continuing operations before adjustment for income or loss from equity investees 1,239,330 Fixed charges 70,536 amortization of capitalized interest 3,815 distributed income of equity investe

July 11, 2012 6-K

Current Report of Foreign Issuer - FORM 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of July, 2012 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant?s name into English) 3-1, OTEMACHI 2-CHOME CHIYODA-KU, TOKYO 100-8116 JAPAN (Addre

July 11, 2012 424B2

CALCULATION OF REGISTRATION FEE Title of Each Class of Securities Offered Maximum Aggregate Offering Price Amount of Registration Fee(1) [ ]% Notes due 2017 $750,000,000 $85,950

Prospectus Supplement Table of Contents CALCULATION OF REGISTRATION FEE Title of Each Class of Securities Offered Maximum Aggregate Offering Price Amount of Registration Fee(1) [ ]% Notes due 2017 $750,000,000 $85,950 (1) This “Calculation of Registration Fee” table updates the “Calculation of Registration Fee” table in the Company’s Registration Statement on Form F-3 (File No.

July 11, 2012 EX-4.2

NIPPON TELEGRAPH AND TELEPHONE CORPORATION [—]% Notes due [— —, —] Principal Amount: $[—]

Form of Global Note Exhibit 4.2 THIS SECURITY IS A SECURITY IN GLOBAL FORM AS REFERRED TO IN THE INDENTURE HEREINAFTER REFERENCED AND REGISTERED IN THE NAME OF A DEPOSITARY OR A NOMINEE THEREOF. UNLESS AND UNTIL IT IS EXCHANGED IN WHOLE OR IN PART FOR THE INDIVIDUAL SECURITIES REPRESENTED HEREBY, THIS GLOBAL SECURITY MAY NOT BE TRANSFERRED EXCEPT AS A WHOLE BY THE DEPOSITARY TO A NOMINEE OF THE DE

June 29, 2012 20-F

- ANNUAL REPORT

20-F 1 d320259d20f.htm ANNUAL REPORT Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 20-F ¨ REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 or x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended March 31, 2012 or ¨ TRANSITION REPORT PURSUANT TO

June 29, 2012 EX-13.2

Nippon Telegraph and Telephone Corporation Certification Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (18 U.S.C. Section 1350)

CHIEF FINANCIAL OFFICER'S CERTIFICATION PURSUANT TO RULE 13A-14(B) Exhibit 13.2 Nippon Telegraph and Telephone Corporation Certification Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (18 U.S.C. Section 1350) Pursuant to the requirements of Section 906 of the Sarbanes-Oxley Act of 2002 (18 U.S.C. Sections 1350(a) and (b)), the undersigned hereby certifies as follows: 1. I, Hiroki Watana

June 29, 2012 EX-13.1

Nippon Telegraph and Telephone Corporation Certification Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (18 U.S.C. Section 1350)

CHIEF EXECUTIVE OFFICER'S CERTIFICATION PURSUANT TO RULE 13A-14(B) Exhibit 13.1 Nippon Telegraph and Telephone Corporation Certification Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (18 U.S.C. Section 1350) Pursuant to the requirements of Section 906 of the Sarbanes-Oxley Act of 2002 (18 U.S.C. Sections 1350(a) and (b)), the undersigned hereby certifies as follows: 1. I, Hiroo Unoura,

June 29, 2012 EX-14.1

Consent of Independent Registered Public Accounting Firm

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM Exhibit 14.1 Consent of Independent Registered Public Accounting Firm The Board of Directors Nippon Telegraph and Telephone Corporation: We consent to the incorporation by reference in the registration statement (No. 333- 175237) on Form F-3 of Nippon Telegraph and Telephone Corporation of our reports dated June 29, 2012, with respect to the

June 29, 2012 EX-12.1

/s/ HIROO UNOURA

CHIEF EXECUTIVE OFFICER'S CERTIFICATION PURSUANT TO RULE 13A-14(A) Exhibit 12.1 CERTIFICATIONS I, Hiroo Unoura, certify that: 1. I have reviewed this annual report on Form 20-F of Nippon Telegraph and Telephone Corporation; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light

June 29, 2012 EX-1.2

SHARE HANDLING REGULATIONS NIPPON TELEGRAPH AND TELEPHONE CORPORATION

EX-1.2 3 d320259dex12.htm AMENDED SHARE HANDLING REGULATIONS OF NTT Exhibit 1.2 (TRANSLATION) Established in September, 1985 Revised in April, 1986 Revised in July, 1991 Revised in July, 1992 Revised in June, 1994 Revised in July, 1999 Revised in October, 1999 Revised in April, 2000 Revised in May, 2000 Revised in December, 2000 Revised in October, 2001 Revised in June, 2002 Revised in April, 2003

June 29, 2012 EX-1.1

ARTICLES OF INCORPORATION NIPPON TELEGRAPH AND TELEPHONE CORPORATION CHAPTER I. GENERAL PROVISIONS

EX-1.1 2 d320259dex11.htm AMENDED ARTICLES OF INCORPORATION OF NTT Exhibit 1.1 (TRANSLATION) Approved on March 23, 1985 Amendment approved on June 26, 1986 June 29, 1988 June 27, 1991 June 29, 1994 June 29, 1995 June 29, 1999 June 29, 2000 June 27, 2002 June 27, 2003 June 29, 2004 June 28, 2006 June 25, 2008 June 24, 2009 ARTICLES OF INCORPORATION OF NIPPON TELEGRAPH AND TELEPHONE CORPORATION CHAP

June 29, 2012 EX-12.2

/s/ HIROKI WATANABE

CHIEF FINANCIAL OFFICER'S CERTIFICATION PURSUANT TO RULE 13A-14(A) Exhibit 12.2 CERTIFICATIONS I, Hiroki Watanabe, certify that: 1. I have reviewed this annual report on Form 20-F of Nippon Telegraph and Telephone Corporation; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in lig

June 28, 2012 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of June, 2012 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) 3-1, OTEMACHI 2-CHOME CHIYODA-KU, TOKYO 100-8116 JAP

June 25, 2012 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of June, 2012 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) 3-1, OTEMACHI 2-CHOME CHIYODA-KU, TOKYO 100-8116 JAP

June 1, 2012 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of June, 2012 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) 3-1, OTEMACHI 2-CHOME CHIYODA-KU, TOKYO 100-8116 JAP

May 23, 2012 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of May, 2012 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) 3-1, OTEMACHI 2-CHOME CHIYODA-KU, TOKYO 100-8116 JAPA

May 14, 2012 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of May, 2012 Commission File Number 1-8910 NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Translation of registrant’s name into English) 3-1, OTEMACHI 2-CHOME CHIYODA-KU, TOKYO 100-8116 JAPA

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