1925
  • Radio broadcasts begin
    1943
  • First telephone collection
    1950
  • First telecommunications anniversary
    1952
  • Japan Telephone and Telegraph Corporation (NTT) Founded
    1953
  • NHK television broadcasts start
    1964
  • Comprehensive Communications Museum Opens in Otemachi, Tokyo
    1966
  • Nationwide microwave network for color television completed
    1984
  • INS model experiments start
    1985
  • Public corporation law abolished. The Nippon Telegraph and Telephone Public Corporation was broken up to form the Nippon Telegraph and Telephone Corporation.
    1988
  • Data Communications Business Spun Off as NTT Data Communications, Ltd.
    1989
  • Telephone "Exchanges" Become Branches and Offices
    1991
  • "NTT Global Environment Charter" Adopted
    1992
  • Contract for 1-Million Line Rural Telephone Expansion Project with TT&T of Thailand
    1994
  • Cooperative Venture with General Magic Announced
  • Technical Cooperation with Microsoft Announced
  • Partnership formed with Silicon Graphics of the USA

    museum@mod.hqs.ntt.jp