NTT, also known as Nippon Telegraph and Telephone Corporation, is a leading telecommunications company headquartered in Tokyo, Japan. It owns NTT DoCoMo, the largest wireless operator in Japan, as well as NTT East and NTT West, the two regional incumbent fixed-line operators. NTT also offers IT and communications systems integration through NTT Communications and NTT Data. With over 330,000 employees and operations in over 80 countries, NTT is committed to being a trusted partner and contributing to society through its business operations.