Nippon Telegraph and Telephone Corp.

History

Year	Detail
1952	Establishment of Nippon Telegraph and Telephone Public Corporation.
1985	Nippon Telegraph and Telephone Public Corporation was privatized to achieve liberty in telecommunications. The new company became known as "NTT."
1987	The company has launched a handheld mobile telephone.
1992	NTT's mobile communications business was spun off into a new company, NTT Mobile Communications Network, Inc.
1988	INS-Net 64, the world's first ISDN (Integrated Services Digital Network) service, was launched in Tokyo, Nagoya, and Osaka.
1996	The Open Computer Network (OCN) was launched in view of the expansion of the Internet.
1999	NTT Group transitioned to a holding company structure, founding NTT EAST, NTT WEST, and NTT COMMUNICATIONS. The mobile telephone Internet connection service i-mode was launched.
2001	NTT East Japan and NTT West Japan introduced FTTH (Fiber To The Home)--a communications system for general households that uses optical fibers--in the form of B FLET'S.
2007	The company has launched Hikari TV, as a video delivery service for TVs that support FLET'S HIKARI.
2008	Cloud service BizCITY for SaaS Provider was launched.
2010	Acquired Dimension Data and Keane (currently NTT DATA, Inc.), thereby making preparations to deliver total ICT services around the globe, including Australia, South America, Africa, and the Middle East.
2015	The company has announced the "Towards the Next Stage 2.0" NTT Group Medium-Term Management Strategy in May 2015.
2019	NTT has proposed the Innovative Optical and Wireless Network (IOWN) concept.
2021	Establishment of NTT Group Global Sustainability Charter.
2022	Transferred NTT Communications Corporation and NTT Comware Corporation under NTT DOCOMO,Inc.
2023	NTT launched the All-Photonics Network IOWN1.0. It is the first commercial service for the realization of IOWN concept, and exclusively uses optical wavelengths in all sections of the communication network.