Cellular Network Japan?

Question:

Hi, I am traveling from India to Japan with a Blackberry 9800 phone. My phone is unlocked. I would like to know what cellular networks are there in Japan and who all support a blackberry network, I would prefer a prepaid sim with low India calling but that is not mandatory. My foremost requirement is a prepaid sim with blackberry support. My stay is for 5 days in and around Tokyo city.

Thanks

Answer:

You'll need a Japanese address / resident of Japan to purchase a prepaid sim card.

The only real options you have are to rent a phone at the airport or to rent a sim card at the airport to input into your blackberry.