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Mobile Number Portability to Start on October 24


TOKYO, JAPAN, August 9, 2006 --- NTT DoCoMo, Inc. and its eight regional subsidiaries, KDDI Corporation, Okinawa Cellular Telephone Company, and Vodafone K.K. will implement mobile number portability on October 24, 2006.

The details will be provided separately by each operator.

About NTT DoCoMo
NTT DoCoMo is the world’s leading mobile communications company. DoCoMo serves more than 51 million customers, of which more than half subscribe to FOMA™, launched as the world’s first 3G mobile service based on W-CDMA in 2001. DoCoMo also offers a wide variety of leading-edge mobile multimedia services, including i-mode™, the world’s most popular mobile e-mail/Internet service, used by more than 46 million people. With the addition of credit-card and other e-wallet functions, DoCoMo mobile phones have become highly versatile tools for daily life. NTT DoCoMo is listed on the Tokyo (9437), London (NDCM) and New York (DCM) stock exchanges. For more information, visit

i-mode and FOMA are trademarks or registered trademarks of NTT DoCoMo, Inc. in Japan and other countries.
NTT DoCoMo’s FOMA service is only available to subscribers in Japan.

About KDDI Corporation
KDDI (TSE: 9433) is a diversified telecommunication operator formed by the merger of DDI, KDD and IDO in 2000, and is the only domestic company that provides both mobile communication service and broadband service. The number of subscribers to the mobile phone services under the au and Tu-Ka brands is over 25 million. The KDDI group companies have more than 14,000 and turnover of 3,060 billion yen in 2006. At KDDI, aggressive improvement of the communications environment in preparation for the coming ubiquitous network society is underway and KDDI is aiming to become a “ubiquitous solution company” which provides high value-added solutions. For more information, please visit

About Vodafone K.K.
Vodafone K.K. (President & CEO: Masayoshi Son), to be renamed SOFTBANK MOBILE Corp. on 1 October 2006, is a leading mobile operator in Japan with over 15 million customers and a member of the SOFTBANK Group. The Tokyo-based company offers a wide range of sophisticated mobile voice and data services, including Vodafone live!, and launched the mobile industry’s first picture messaging service (Sha-mail) in November 2000. Vodafone K.K. is now working in close cooperation with other SOFTBANK Group companies to accelerate the pace of the IT revolution. For more information, please visit
*Above data is current as of 31 July 2006.

Sha-mail is a registered trademark of Vodafone K.K.
Vodafone and Vodafone live! are registered trademarks or trademarks of Vodafone Group Plc.


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