Microsoft ends support for Internet Explorer on June 16, 2022.
We recommend using one of the browsers listed below.

  • Microsoft Edge(Latest version) 
  • Mozilla Firefox(Latest version) 
  • Google Chrome(Latest version) 
  • Apple Safari(Latest version) 

Please contact your browser provider for download and installation instructions.

Open search panel Close search panel Open menu Close menu

Group Companies

Composition of group companies

(End of March, 2023)

NTT Group

  • Total Assets: ¥25,308.9 billion
  • Consolidated Operating Revenues: ¥13,136.2 billion
  • Consolidated Operating Income: ¥1,829.0 billion
  • Number of Employees: 338,651

Nippon Telegraph and Telephone Corporation

NTT
  • Total Assets: ¥11,805.9 billion
  • Operating Revenues: ¥1,324.2 billion
  • Operating Income: ¥1,149.4 billion

Main Businesses:

For NTT Group as a whole, formulation of management strategies and promotion of basic research

Business Activities:

Mobile phone services, domestic inter-prefectural communications services, international communications services, solutions services, and system development services and related services.

Major Services:

Mobile telecommunications services, docomo Hikari, etc.

Regional Communications Business

Business Activities:

Domestic intra-prefectural communications services and related ancillary services.

Major Services:

FLET'S Hikari, Hikari Collaboration Model, etc.

Global Solutions Business

Business Activities:

Consulting services, system and software development services, network system services, cloud services, global data center services, and related services, etc.

Major Services:

Consulting services, cloud services, global data center services, managed services, and system and software development services, etc.

Others (Real Estate, Energy and Others)

Business Activities:

Real estate business, energy business and others.

Evaluation by Society

    • EP100 EV100

      NTT is the first telecommunications operator to become a member of global initiatives to make smarter use of energy, “EP100” and “EV100” (Oct. 2018)

    • CSDE

      Established a council to promote secure digital economy together with multi-national companies

    • Logo image “2021 CONSTITUENT MSCI JAPAN ESG SELECT LEADERS INDEX”
    • FTSE4Good
    • FTSE Blossom Japan