KDDI Corporation
Okinawa Cellular Telephone Company

February 18, 2008

KDDI and Okinawa Cellular are pleased to announce the February 19 addition of international data roaming services to voice roaming services in Vietnam for users of GLOBAL PASSPORT, the international roaming service offered by KDDI that enables au mobile handsets used in Japan to be used without modification overseas.

With addition of Vietnam, GLOBAL PASSPORT data roaming services will now be available in 13 countries and territories overall, including the United States, Hawaii, China, South Korea, Thailand, Taiwan, Canada, Guam, Saipan, India, Indonesia and Israel.

Customers using handsets enabled for data roaming services, will now be able to exchange e-mail and access the Web, in addition to voice-call services currently offered in Vietnam, simply by updating to the latest PRL (Preferred Roaming List) before traveling. This does not require any prior application.

In addition to the territories now covered by the data roaming service, KDDI plans to expand data roaming availability to other countries where voice roaming is already provided. KDDI continues to work to bring more convenience to users of au mobile phones when they travel overseas.

The PRL (Preferred Roaming List) contains information on roaming areas of overseas partner providers. The latest PRL is necessary for users to roam in an area where a new roaming service is introduced. Users should download and update information stored on their handsets before they leave Japan.

Please refer to au's website, http://www.au.kddi.com/english/global/gp/prl.html. Subscription to the EZweb service is required for using this function.