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. It also has a ownership stake in two Japanese cable television companies, Jupiter Telecommunications (J:COM) and Japan Cablenet (JCN). 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.