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 Nearly 9 out of every 10 Mobile Users Are Choosing KDDI

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COSTA MESA, CALIF. — December 12, 2006 — The CDMA Development Group (CDG) announced today that in the wake of Japan’s mobile number portability (MNP) rules, KDDI, Japan’s second-largest operator, is witnessing a significant boost in net subscriber numbers. Since MNP was introduced in Japan, on October 24th, KDDI gained 324,900 net subscribers in the month of November alone, representing more than 82% of the total net additions or sixtimes the amount of subscribers that were added by the other two competing networks .  KDDI operates one of the world’s preeminent CDMA2000® networks.

“The benefits of CDMA2000 have become clear to customers,” said Perry LaForge, executive director of the CDG. “Now that it is significantly easier for Japanese customers to change their mobile service provider, they are free to choose the services and user experience that best suit their needs. CDMA2000 is delivering 3G broadband service years ahead of competing technologies and currently offers the most valuable selection of mobile multimedia applications. Once KDDI begins offering advanced mobile broadband data services using their new 1xEV-DO Revision A (Rev. A) network later this month, competing service providers can expect increased attrition.”

KDDI is expected to attract the majority of the customers who have opted to change their mobile service after October ’s ruling. The company is committed to the operation of their CDMA2000 network.

Tohru Kawai , Vice P resident and G eneral Manager, “au” Business Sector of KDDI, stated, “ KDDI is pleased to see the growing demand for our advanced CDMA2000 services. Having our competitors’ customers choose our network, services and customer care is a testament of the value that we provide.”

EV-DO Rev. A has been standardized by the Third Generation Partnership Project 2 (3GPP2) and has been enhanced to support delay sensitive, symmetric and real-time applications. Beyond a significant reduction in latency, Rev. A’s most compelling benefit will be increased uplink speeds up to 1.8Mbps and downlink speeds up to 3.1Mbps. As an all-IP platform, Rev. A will allow the new network to support higher voice capacity, lower operating costs, faster development of applications and services, and a wider range of auxiliary access networks.

More information on CDMA2000 is available at

About CDMA
CDMA2000 is the most widely deployed 3G technology, with 186 operators in 80 countries, including 51 CDMA2000 1xEV-DO systems, serving more than 300 million subscribers.  Counting 2G cdmaOne™ subscribers, there are more than 350 million CDMA users worldwide.  CDMA2000 has become the technology of choice for cdmaOne, TDMA, analog and greenfield operators, and is deployed in the 450, 800, 1700, 1900 and 2100 MHz bands. Nearly 1,460 CDMA2000 devices from more than 85 suppliers have been introduced to the market, including more than 351 1xEV-DO devices.  More information on CDMA2000 is available on the CDG Web site at

About CDG
The CDMA Development Group is a trade association formed to foster the worldwide development, implementation and use of CDMA2000 technologies. The more than 130 member companies of the CDG include many of the world’s largest wireless carriers and equipment manufacturers. The primary activities of the CDG include development of CDMA2000 features and services, public relations, education and seminars, regulatory affairs and international support. Currently, there are more than 500 individuals working within various CDG subcommittees on CDMA2000-related matters. For more information about the CDG, contact the CDG News Bureau at +1-714-540-1030, or visit the CDG Web site at  

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Note to editors
cdmaOne is a registered trademark of the CDMA Development Group. CDMA2000 is a registered trademark of the Telecommunications Industry Association (TIA-USA). All other trademarks are the property of their respective owners.