Nippon Telegraph and Telephone Corporation, together with its subsidiaries, provides fixed and mobile voice related services, IP/packet communications services, telecommunications equipment, and system integration and other telecommunications-related services in Japan. It offers regional communications services, including intra-prefectural communications and related ancillary services; long distance and international communications services, such as inter-prefectural communications, international communications, and solution businesses; mobile communications services, including mobile telephone and related services; and data communications services, such as system integration and network system services. The company 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. As of March 31, 2012, it had 16,564 thousand FTTH service subscriptions; 2,322 thousand ADSL service subscriptions; 31,672 thousand fixed-line telephone service and ISDN service subscriptions; 11,882 thousand ISP service subscriptions; and 60,129 thousand mobile subscribers. Nippon Telegraph and Telephone Corporation was founded in 1952 and is headquartered in Tokyo, Japan.