How to get a Thai SIM card
A Thai SIM card gives you a local number and mobile data while travelling or living in Thailand. You can choose a physical SIM or, if your phone supports it, an eSIM. A local connection is useful for maps, bookings, banking and messaging apps such as LINE and WhatsApp.
1. Check that your phone can use a Thai SIM
Before buying, check that your phone is unlocked for use with another mobile network. If you want an eSIM, check that your particular phone model supports eSIM and that you understand how to switch between your home and Thai data plans. You may be able to keep your home number active while using the Thai plan for mobile data.
2. Choose a provider and plan
AIS and True–dtac offer tourist mobile plans in Thailand. Compare the plan’s validity period, data allowance, speed, local calls and renewal terms before buying. A short tourist package may suit a holiday; someone living in Thailand may prefer a renewable prepaid or monthly plan.
Check the providers’ current offers directly: AIS tourist SIM and eSIM and True–dtac tourist SIM and eSIM. Packages and prices change, so this article does not list a fixed price or an old activation code.
3. Register the SIM with your passport
Thai mobile SIMs require identity registration. Bring your valid passport when purchasing a physical tourist SIM, and follow the provider’s identity-check instructions if buying an eSIM online. Make sure the number is registered in your own name and keep the purchase or registration confirmation.
Tip: Ask the seller to activate the SIM and test mobile data before you leave the counter. If you need a Thai number for bank messages or other long-term accounts, confirm that your chosen plan and number can remain active after the initial tourist package expires.
4. Keep the number active
Check your provider’s app or account page for your balance, package expiry and top-up options. You can usually renew or buy another data package through the provider’s app, website or an authorised retailer. Avoid relying on old dial codes found in articles: providers can change them.
Physical SIM or eSIM: which should you choose?
- Physical SIM: straightforward if your phone has a free SIM slot and you prefer help activating it in a shop.
- eSIM: convenient if your phone supports it and you want to keep your existing physical SIM in place.
Whichever you choose, check coverage where you will actually stay, particularly if you will travel beyond major cities.
Planning a longer stay in Thailand?
Our Pattaya team can help with Thai visa and immigration questions while you get settled.
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