NTT, Inc. operates as a telecommunications company in Japan and internationally. The company operates through the Comprehensive ICT Business, Regional Communications Business, Global Solutions Business, and Others segments. Its Comprehensive ICT Business segment offers mobile phone and fiber-optic broadband services; financial, content, and lifestyle services; and corporate communication services and solutions. This segment also engages in engineering, system development, and related businesses. The Regional Communications Business segment provides optical fiber services, corporate services, fixed-line telephone services, and related businesses. Its Global Solutions Business segment offers consulting, IT solutions, system and software development, and maintenance services. This segment is involved in port operations, data center operations, and related businesses. Its Others segment engages in real estate and construction, energy, and other businesses. The company was formerly known as Nippon Telegraph and Telephone Corporation and changed its name to NTT, Inc. in July 2025. NTT, Inc. was founded in 1952 and is headquartered in Chiyoda, Japan.