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Cellular Providers and Frequencies of Japan

Cellphone GSM Frequencies: NONE

(You need a CDMA or TDMA cellphone to be able to use it in Japan.)

Cellular carriers for Japan

There are no GSM cellular carriers in Japan.

Japan does not have any GSM mobile networks and uses a different type of technology. Most mobile phones purchased outside of Japan do not work in Japan. It uses TMDA (PDC), CDMA, and WCDMA technology that is not neccessarly compatable with a phone purchased for use on foreign cellular providers' networks.

For more information on using mobile phones in Japan please check this site:

If you've used either of these networks or roamed in Japan, please post about your experience and the cost. Feel free to ask questions.