Introduction:
Nippon Telegraph and Telephone Corporation, together with its subsidiaries, provides fixed and mobile voice related services, IP/packet communications services, telecommunication equipment, system integration, and other telecommunications-related services in Japan and internationally. The company operates through five segments: Regional Communications Business, Long Distance and International Communications Business, Mobile Communications Business, Data Communications Business, and Other Business. It offers regional communications services, such as intra-prefectural communications services and related ancillary services; long distance and international communications services comprising inter-prefectural communications services, international communications business, solutions business, and related services; mobile communications services, which include mobile phone and related services; and data communications services consisting of system integration and network system services. It also provides financial services, such as issuing leases and credit cards; real estate services, including building rentals and apartment sales; systems development services; and construction-related services, such as the design, construction, and maintenance of buildings. In addition, the company engages in strategic planning, designing, installing, and operating data communications systems and computer network-based information systems, as well as providing IT services. As of March 31, 2016, the company had 19,259 broadband service subscriptions; 1,053 ADSL service subscriptions; 22,718 fixed-line telephone service subscriptions and ISDN service subscriptions; 11,411 ISP service subscriptions; and 70,964 mobile broadband and voice communications service subscribers. Nippon Telegraph and Telephone Corporation was founded in 1952 and is headquartered in Tokyo, Japan.