Originally Posted by hiyo
I'm traveling to SEAsia in a few months, Hong Kong, Vietnam, Cambodia and Thailand. I thought I'd bring back this thread with a question as to anyone's experiences with
United Mobile, which used to be riiing.com.
I have a four-band GSM phone and I would like to get a world SIM card that will work in the US, as well as in the countries I mentioned. Any feedback on this SIM card? Or any others that might work for me?
prepaidgsm.net is site to check for all info.
from personal experience, you can get hk and thai sim card quite easily and not expensive, no passportt requirements, no sure for vietnam and cambodia but the above site should provide more details