Guide: Which Thai Mobile Phone Company should you use?

Thai Mobile Phone Companies with Thai tourist sim cards (AIS, DTAC, and TRUEmove)
Do you want mobile phone signal on your island hopping in Thailand? We tested the options, see the results here.

Before you buy a Thai sim card, be sure you buy from the company that best suits your needs. In our previous post here, we argued that there are several good reasons for acquiring a Thai sim card for your stay in Thailand. However, the further you get away from the cities and popular vacation spots, the harder it is to stay connected. If you stay on Koh Samui, Phuket or Hua Hin there will be no such issues. But are you island hopping to Koh Kud, Koh Mak, Koh Muk or Koh Kradan you need to use the right Thai mobile phone company.

AIS, DTAC or True Move

There are three main suppliers in Thailand, who all offer sim card packages for tourists. The three operators offer similar products and prices. What is more important, is where you are going to use the phone and for what. Will you use 3G or 4G, and do you want to stream movies and use your smartphone as a WiFi hotspot? Or do you want the best coverage in the entire country? If you are in bigger cities it doesn’t really make much of a difference. We have tested all three mobile service providers in Thailand and done a bit of follow-up research. This is how AIS, DTAC, and True Move compare:

Which Thai mobile phone company? Comparison of AIS (12Call), DTAC (happy), and TRUEmove

For the purpose of island hopping and exploring all corners of Thailand, we definitely recommend AIS (12Call). Prices do not differ much between the mentioned companies, and for a lot of beachers it is nice to have the option to communicate with friends and family.

This evaluation is from March 2015. Bear in mind that Thai mobile phone companies constantly look to upgrade their coverage, adjust their rates, launch promotions, and provide better and faster internet. So remember to keep yourself updated before you buy.

For those who want a little more detail, we recommend the web page They give nice overviews of coverage with their country maps. You can zoom  in on you favorite beach and see which carrier you should use. Take a look at this:

AIS (12Call), DTAC (Happy), and TRUEmove Network Coverage Maps



1 CommentLeave a comment

  • This is a very helpful article thanks.
    Apparently True Move is now the best coverage even in rural areas.

    Any suggestion between prepaid and postpaid ? Postpaid plans look more interesting – are they harder to set up ?


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