Nippon Telegraph and Telephone
Nippon Telegraph and Telephone (日本電信電話 Nippon Denshin Denwa) is a telephone company that dominates the telecommunication market in Japan. Once established as a monopoly public company, commonly known as denden kosha, the company was later privatized to encourage competition in the telecome market.
As a group corporation, it consists of the following major companies:
- NTT East
- NTT West
- NTT Data
- NTT DoCoMo (mobile operator)
- NTT Communications