Nippon Telegraph and Telephone (NTT)(NTTYY.US)

Nippon Telegraph and Telephone Corporation operates as a telecommunications company in Japan and internationally. It operates through Integrated ICT Business, Regional Communications Business, Global Solutions Business, and Others segments. The Integrated ICT Business segment offers mobile phone, domestic inter-prefectural communications, international communications, solutions, and system development and related services. The Regional Communications Business segment provides intra-prefectural communications and related ancillary services.