Who is NTT?

(NTT) Nippon Telegraph and Telephone

Coordination of group companies and laboratories that lead R&D in the telecomunications field. ntt.co.jp

NTT Communications

Focuses on providing IP Network services and solutions. One of the largest ISPs and largest Wireless ISP in Japan. ntt.com

NTT America

Provides IP Network services and solutions with primary focus in North America. nttamerica.com