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'''KDDI Corporation''' is a [[Japan|Japanese]] telecommunication operator formed in October [[2000]] through the merger of DDI Corporation, KDD Corporation and IDO Corporation. KDDI provides [[cdma2000]] mobile cellular services in the [[au]] brand, ISP network and solution services in the [[DION]] brand, as well as long-distance and internation voice and data communications services.
'''KDDI Corporation''' is a [[Japan|Japanese]] telecommunication operator formed in October [[2000]] through the merger of DDI Corporation, KDD Corporation and IDO Corporation. KDDI provides mobile cellular services in the [[au]] brand, ISP network and solution services in the [[DION]] brand, and long-distance and international voice and data communications services.

At the end of 2003, au/KDDI had 15.977 million customers, among which 11.764 million (73.6%) are [[3G]] cdma2000 subscribers. au/KDDI is particular popular among teenagers with special student discount.

au/KDDI has been very successful with its EZ wireless data services, [[EZweb]], ''EZweb@mail'', [[EZappli]], [[EZchakuuta]], [[ezmovie]], and [[eznavigation]] ([[GPS]]), powered by the advanced [[WAP]] technology and its efficient [[cdma2000]] network.

[[TU-KA]], an affiliated company of KDDI, is a 2G [[PDC]] mobile cellular operator who did not apply a 3G license.


On [[April 1st]], [[2002]], KDDI launched [[3G]] networks using [[cdma2000 1X]] technology. On [[November 28]], [[2003]], au/KDDI launched [[cdma2000 1xEV-DO]] service in the [[CDMA 1X WIN]] brand.
On [[April 1st]], [[2002]], KDDI launched [[3G]] networks using [[cdma2000 1X]] technology. On [[November 28]], [[2003]], au/KDDI launched [[cdma2000 1xEV-DO]] service in the [[CDMA 1X WIN]] brand.

Revision as of 17:04, 25 March 2004

KDDI Corporation is a Japanese telecommunication operator formed in October 2000 through the merger of DDI Corporation, KDD Corporation and IDO Corporation. KDDI provides mobile cellular services in the au brand, ISP network and solution services in the DION brand, and long-distance and international voice and data communications services.

At the end of 2003, au/KDDI had 15.977 million customers, among which 11.764 million (73.6%) are 3G cdma2000 subscribers. au/KDDI is particular popular among teenagers with special student discount.

au/KDDI has been very successful with its EZ wireless data services, EZweb, EZweb@mail, EZappli, EZchakuuta, ezmovie, and eznavigation (GPS), powered by the advanced WAP technology and its efficient cdma2000 network.

TU-KA, an affiliated company of KDDI, is a 2G PDC mobile cellular operator who did not apply a 3G license.

On April 1st, 2002, KDDI launched 3G networks using cdma2000 1X technology. On November 28, 2003, au/KDDI launched cdma2000 1xEV-DO service in the CDMA 1X WIN brand.