NTT

Overview

NTT is a Japan-based telecommunications and ICT group serving consumer and enterprise customers in Japan and overseas. Its businesses span communications networks and telecom services, IT solutions, systems development, consulting and data centers, alongside real estate and energy activities. The group organizes its operations into Integrated ICT, Global Solutions, Regional Communications and Others.[1]+4

NTT states its Core as “Innovating a Sustainable Future for People and Planet.” For the fiscal year ended March 31, 2026, it reported consolidated operating revenue of ¥14,409.1 billion; it had 344,196 employees as of that date.[6]+2 [7]+7

Products & services

NTT’s product and service portfolio spans communications, digital services, IT solutions and data-center services. Its Integrated ICT business includes consumer mobile and optical-broadband services, enterprise communications, and “Smart Life” offerings such as finance, payments and content; named services include d CARD, d-Barai and direct carrier billing.[9][2] Global Solutions includes consulting, IT and systems solutions, software development, maintenance and support, and data-center services.[3]

NTT’s regional communications businesses offer optical, fixed-line and enterprise services, including FLET’S Hikari Cross. Its All-Photonics Connect service provides point-to-point optical connectivity at 10, 100, 400 or 800 Gbps.[4] NTT also develops IOWN network technologies and applications; its stated 2030 APN performance goals—100 times power efficiency, 125 times capacity and one two-hundredth the end-to-end latency of current networks—are targets, not current service specifications.[10][11] Named technology offerings include tsuzumi 2, NTT’s large language model, and docomo Starlink Direct, which provides direct-to-satellite connectivity.[12]+3

For FY2025, reported segment revenues were ¥6,458.1 billion for Integrated ICT, ¥5,004.6 billion for Global Solutions, ¥3,210.2 billion for Regional Communications and ¥1,752.6 billion for Others. These amount to approximately 39.3%, 30.5%, 19.5% and 10.7%, respectively, of the ¥16,425.5 billion sum of segment revenues; the segment figures include inter-segment transactions, so these calculated shares are not percentages of consolidated revenue.[15] [9]+19

Geographic presence

Japan is NTT’s domestic base. The group operates in more than 80 countries and regions and serves clients in more than 190 countries; this describes its operating and service reach, not necessarily locations with NTT offices [16].

For FY2025, the year ended March 31, 2026, NTT reported geographic revenue of ¥11,189,280 million from Japan (approximately 77.7% of total) and ¥3,219,841 million from overseas (approximately 22.3%). The reported breakdown distinguishes Japan from overseas rather than providing country-level shares [17][18]. NTT’s head office is in Otemachi, Chiyoda-ku, Tokyo; the group reported 344,196 consolidated employees as of March 31, 2026 [19]. [16]+3

Business segments

NTT’s current reported segments are Integrated ICT Business, Global Solutions Business, Regional Communications Business, and Others (Real Estate, Energy and Others). Integrated ICT covers consumer telecommunications, Smart Life services, and enterprise telecommunications and solutions [2]. Global Solutions includes consulting, IT solutions, system and software development, support, and data-center services [3]. Regional Communications focuses on optical, enterprise, fixed-line, and related communications services [4]. Others comprises real estate, energy, and other businesses [1].

For FY2025, the latest completed fiscal year, reported segment operating revenues were ¥6,458.1 billion for Integrated ICT (about 39.3% of total reported segment revenue) [15], ¥5,004.6 billion for Global Solutions (30.5%) [15], ¥3,210.2 billion for Regional Communications (19.5%) [15], and ¥1,752.6 billion for Others (10.7%) [15]. These approximate shares are calculated against the sum of the four segments’ reported revenues; the segment figures include inter-segment transactions, so the percentages are not shares of consolidated revenue [15]. NTT also presents segment information on pre- and post-revision bases, so comparisons across periods should use a consistent segment basis [20]. [15]+14

Company history

NTT’s predecessor, Nippon Telegraph and Telephone Public Corporation, was established on August 1, 1952, taking over Japan’s government-run telegraph and telephone business. On April 1, 1985, the public corporation was privatized and Nippon Telegraph and Telephone Corporation was formed.[21][22]

In 1999, NTT reorganized as a holding company, establishing NTT EAST, NTT WEST and NTT Communications. That year, its mobile subsidiary NTT DOCOMO launched i-mode, a mobile internet service. NTT expanded its international ICT services business with its 2010 acquisition of Dimension Data.[23][24]

NTT introduced its IOWN technology concept in 2019. In October 2022, NTT and NTT DATA combined their international businesses under NTT DATA, Inc. On July 1, 2025, Nippon Telegraph and Telephone Corporation changed its name to NTT, Inc.[25]+2 [21]+6

Sources

• group.ntt[1]
• group.ntt[2]
• group.ntt[3]
• group.ntt[4]
• group.ntt[5]
• group.ntt[6]
• NTT — Presentation (2025 Y)
  5 citations

  [7][8][9][10][12]
• group.ntt[11]
• group.ntt[13]
• www.docomo.ne.jp[14]
• NTT — Additional data (2025 Y)[15]
• group.ntt[16]
• group.ntt[17]
• the-shashi.com[18]
• group.ntt[19]
• group.ntt[20]
• group.ntt[21]
• group.ntt[22]
• group.ntt[23]
• www.docomo.ne.jp[24]
• group.ntt[25]
• group.ntt[26]
• group.ntt[27]