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KDDI provides mobile cellular services using both the "au by KDDI" brand. ISP network and solution services in the au one net brand, and long-distance and international voice and data communications services, Fiber to the Home (FTTH) services under the brand name "Hikari One" and ADSL broadband services under the brand name "ADSL One" and IP telephony over copper under the brand "Metal Plus." On April 1, 2002, au by KDDI launched 3G networks using CDMA2000 1x technology. On November 28, 2003, au by KDDI launched EV-DO Rev 0 service in the "CDMA 1X WIN" brand, and revolutionized Japan's mobile telecommunication industry by introducing fixed rate data subscription plans at a data rate of 2.4 Mbit/s. On December, 2006, au by KDDI became the first carrier to provide an EV-DO Rev A service at a data rate of 3.1Mbit/s (downlink), 1.8Mbit/s (uplink). au by KDDI has been very successful with its EZ wireless data services, EZweb, EZweb@mail, EZappli, EZchakuuta, ezmovie, and EZnaviwalk (GPS), using the advanced WAP technology. It supports both Java ME and BREW application environments. In November 2004 au by KDDI introduced the music include ringtone download service Chaku Uta Full (music ringtone full), for download of full length songs to mobile phones. Within six months from introduction, on June 15, 2005, customers had downloaded 10 million full length Chaku Uta Full songs. As of end of June 2005, au by KDDI has 20,122,700 customers, among which 18,723,200 (93 %) are 3G CDMA2000 subscribers. It is Japan's second-largest cellular operator with an increasing 20.0% market share. On January 26, 2006 the first pointing local search application, Mapion Local Search - Powered by GeoVector, was launched on the KDDI network on their GPS and compass equipped handsets. [http://www.kddi.com/english/corporate/kddi/data/index.html Consumer showroom is set in Harajuku called, "KDDI Designing Studio" TU-KA (TU-KA by KDDI), a subsidiary company of KDDI, was a 2G PDC cellular operator in three metropolitan areas (Tokyo, Nagoya, and Osaka), which did not apply a 3G license. TU-KA was best known for having singer Ayumi Hamasaki to appear in their commercials. TU-KA was closed in March 31, 2008. DDI Pocket, a PHS operator, was previously owned by KDDI but has now been spun off as Willcom. |
