History

The history of Nippon Telegraph and Telephone Corporation and NTT Group.

1985 April 1	NIPPON TELEGRAPH AND TELEPHONE CORPORATION ("NTT") was established
1983	Dimension Data was established in the Republic of South Africa
1985 April 11	NTT Leasing Co., Ltd (currently NTT FINANCE CORPORATION) was established
1986 January 21	NTT Urban Development Corporation was established
1987 February 9	NTT was listed on the first section of the Tokyo Stock Exchange
1988 May 23	NTT DATA Communications Systems Corporation was established
1991 August 14	NTT Mobile Communications Planning Co., Ltd., was established
1992 April 28	NTT Mobile Communications Planning Co., Ltd., changed its trade name to NTT Mobile Communications Network, Inc.
1992 December 1	NTT FACILITIES, Inc. was established
1997 September 1	NTT COMMUNICATIONWARE CORPORATION was established
1998 August 1	NTT DATA Communications Systems Corporation changed its trade name to NTT DATA CORPORATION
1998 October 22	NTT Mobile Communications Network, Inc. was listed on the first section of the Tokyo Stock Exchange
1999 July 1	The organizational structure was reformed with NTT as a pure holding company
1999 July 1	NIPPON TELEGRAPH AND TELEPHONE EAST CORPORATION was established and took over from NTT regarding prefectural communications and other services covered by the East Japan Migration Headquarters
1999 July 1	NIPPON TELEGRAPH AND TELEPHONE WEST CORPORATION was established and took over from NTT regarding prefectural communications and other services covered by the West Japan Migration Headquarters
1999 July 1	NTT Communications Corporation was established and took over from NTT regarding inter-prefectural communications and other services covered by the Long-Distance and International Communications Businesses
2000 April 1	NTT Mobile Communications Network, Inc. changed its trade name to NTT DoCoMo, Inc.
2000 November 1	NTT COMMUNICATIONWARE CORPORATION changed its trade name to NTT COMWARE CORPORATION
2006 July 1	NTT Leasing Co., Ltd. changed its trade name to NTT FINANCE CORPORATION
2010 December 3	Dimension Data was wholly acquired by NTT through a tender offer
2013 October 1	NTT DoCoMo, Inc. changed its trade name to NTT DOCOMO, Inc.

NTT Group's History

Ever since Nippon Telegraph and Telephone Public Corporation was established in 1952, NTT continually develops many kinds of technology to meet the needs of the times.

Here, we introduce the evolving history of telecommunications up until the present and the steps that NTT Group has taken, along with the history of telecommunications and other events from general society.

NTT Group's History

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Corporate

Medium-Term Management Strategy

Your Value Partner 2025

To resolve social issues through its business operations, NTT Group works together with its partners as "Your Value Partner."

Other Informations

Evaluation by Society

- NTT is the first telecommunications operator to become a member of global initiatives to make smarter use of energy, “EP100” and “EV100” (Oct. 2018)
- Established a council to promote secure digital economy together with multi-national companies

NTT STORY

WEB media that thinks about the future with NTT

NTT STORY

Group Companies