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NTT is a Japanese telecommunications company headquartered in Tokyo, Japan. Ranked 55th in Fortune Global 500, NTT is the fourth largest telecommunications company in the world in terms of revenue,[3] as well as the third largest publicly traded company in Japan after Toyota and Sony, as of June 2022.
NTT Communications official site. Corporate information, employment information, services for individuals, services for corporations, individual businesses, and service information for small and medium-sized enterprises are posted.
NTT Research's PHI Lab (Physics and Informatics) is exploring new fields of science in order to develop new computers for unsolvable combinatorial problems.