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Cellular phone frequencies used in Japan

So, the first thing you need to know is if your cellphone is compatible in Japan.

First, there’s no 2G GSM cellphone company in Japan. If your phone is a simple talk-only or talk-and-text cheap feature phone, it may not work in Japan even if you’re going to use it on the international roaming plan from your own non-Japanese carrier. You need a 3G compatible phone in Japan.

There’re 3 major cellphone companies in Japan; NTT Docomo, Softbank, and KDDI au. If you’re from the United States of America visiting Japan and your phone is from AT&T or T-Mobile US, your phone will probably work on NTT Docomo (W-CDMA/UMTS 2100MHz or 850/800MHz) or Softbank (W-CDMA/UMTS 2100MHz) signals while roaming there, provided that your phone is compatible with 3G 2100MHz frequency. If you’re from the USA and your phone is from Verizon or Sprint, your phone will work on NTT Docomo (W-CDMA/UMTS 2100MHz or 850/800MHz) or Softbank (W-CDMA/UMTS 2100MHz) or KDDI au (CDMA2000 800MHz only) signals in Japan. If you’re from any other countries and your phone is a 3G W-CDMA/UMTS compatible phone, it will work with NTT Docomo or Softbank signals.

Here’s the list of cellphone frequencies used by

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