Question: do uk mobile phones work in japan?
Answer: Your iPhone and Galaxy will work in Japan on DoCoMo and Softbank networks, as they are 3G/4G. Roaming charges for UK phones are extremely high, like £1.20-£1.50 per min to call out and to receive. ... I found,that in some areas in international public phones - you need to use NTT code only - 0033.