Is There Any Prepaid In Japan?

[Effendi]

Originally Posted by calm

I am not talking about CDMA prepaid. I am talking about GSM prepaid. Effendi, could you confirm that Riing/United sim works in Japan?

In Japan there is no GSM, so it's a little hard to find any GSM prepaid or contract there!
They have PDC (2G) and W-CDMA (3G), as well as CDMA2000 1x Ev Do (3G, so they say).
The only prepaid available (buying a phone) are on PDC network, which exists in Japan only. Vodafone surely offers some (you find info on this site), I'm not sure about DoCoMo, but probably they do.

United Mobile officially doesn't cover Japan; but UM is virtual operator on FL1 network, and FL1 has roaming agreements with Vodafone KK; DRNewcomb, as well as Stu, used it in Japan, so it works, even if it's quite expensive. But of course you need an UMTS (W-CDMA 2100MHz, the European standard) phone, since there is no GSM there.