When you arrive at Suvarnabhumi Airport ( BKK ) one of the first things you’ll want to do after you’ve landed is get connected. You can do this one of 2 ways – roaming or buying a local SIM card.
Considering roaming means you will use your existing home SIM on local Thai networks. Usually you can choose any of the 3 major networks you want, but your local telecom company may have negotiated rates with one of the local providers. (Likely the one that sends you a welcome SMS when you first turn on your phone in Thailand.)
Be sure to have International Roaming turned on before you http://torasap.com/wp-admin/post.php?post=14119&action=edit&message=10leave your home country. Call the call center and ask them to turn it on, and also ask about their charges for data and voice roaming in Thailand, and their preferred partner network. Data roaming can be as cheap as $15 a day, on the right network.
Buying a Sim
The way to get a local Thai number and local Data is by buying a Thai SIM card. SIM cards slide into the back of most phones unless you’re on a CDMA system found in USA or Japan. In Suvarnabhumi Airport (BKK), the 3 Thai Telcos have shops where you can buy a Thai SIM card. First, right outside of the International gates, there are kiosks for DTAC (blue), AIS (Green ) and True Move (Red). The base price of all basic SIM cards is 50 thb. Yes, less than $2. So yeah, that’s dirt cheap!
To get an idea of what these phone kiosks look like, here are a few photos of the actual shops: