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Official Site of KDDI. Introduction to Personal, Business, Corporate Information and Customer Support.

Founded: Oct 2000

Tokyo, Japan

Telecommunications  Mobile 

Tokyo-based KDDI Corporation is a Japanese telecommunications operator. It was created in 2000 through a merger of DDI, KDD and IDO and now employs over 15,000 people.

The company provides a broad range of services, including fixed-line phone communication, mobile phone and web services, and Internet services.

KDDI’s mobile phone and web arm is branded as “au”. The company is the current No. 2 in Japan’s mobile communications market, trailing NTT docomo and ahead of SoftBank.