Nippon Telegraph & Telephone

NTT, Inc. is a holding company, which engages in the provision of telecommunication services for domestic and overseas markets. The company is headquartered in Chiyoda-Ku, Tokyo-To and currently employs 341,321 full-time employees. The firm operates through four business segments. The Comprehensive ICT Business segment is engaged in the mobile phone business, inter-prefectural communications services in the domestic telecommunications business, international communications business, solutions business, system development business, and related businesses. The Regional Communications Business segment is engaged in the provision of intra-prefectural communications services in the domestic telecommunications business and related businesses. The Global Solutions Business segment is engaged in the system integration, network systems, cloud, global data centers, and related businesses. The Other (Real Estate, Energy) segment includes real estate business, energy business and others.