The Nippon Telegraph and Telephone Corporation, commonly known as NTT. It was founded in 1985. It is a Japanese telecommunications company headquartered in Tokyo, Japan.
The aim of forming the company is to own the shares issued by NTT East and NTT West. It has to provision telecommunications services all over Japan including remote areas. Also it has to conduct research related to the telecommunications technologies for future growth. It has 239,750 employees as on March 2014. In 1988, NTT Data started its operations.