Nippon Telegraph and Telephone
Nippon Telegraph and Telephone (日本電信電話 Nippon Denshin Denwa) is a telephone company that dominates telecommunication market in Japan. It was once a public company.
As the group corporation, it consists of following companies:
- NTT East
- NTT West
- NTT Data
- NTT DoCoMo (developed iMode)
- NTT Communication
