Mobile networks in Thailand

Which networks your eSIM uses in Thailand

Your eSIM works on TrueMove H, DTAC, CAT, AIS and True Move. It selects the strongest partner network automatically wherever you are, and it cannot be locked to a single carrier. This is a data only travel eSIM on a country plan, so there is no local phone number.

That automatic choice matters when you move between cities, islands and rural areas. You do not pick an operator or change settings when signal changes. The eSIM handles the switch for you.

Because the plan is data only, WhatsApp and app calls work over data. Your own SIM stays in the phone for calls and bank texts, so you keep your normal number active while travel data runs on the eSIM line.

Getting connected follows a short sequence:

1. Buy the plan and receive the QR code by email in minutes.
2. Install the eSIM on Wi-Fi before your flight.
3. Keep your own SIM in the phone for calls and bank texts.
4. Turn on data roaming for the eSIM line if data does not start.
5. Let the eSIM connect when you land, and your days begin from that first connection in the country.

Coverage and 5G in Thailand

5G is the main generation on this eSIM, and Thailand is a heavily connected market. Mobile subscriptions reach 161 per 100 people, and 91 percent of the population uses the internet. With five partner networks behind one eSIM, your phone joins whichever partner is strongest where you are.

Those figures come from ITU via the World Bank, checked on 31 October 2026. High subscription numbers reflect a market where people rely on mobile data daily, including for messaging, maps and payments.

For a visitor, the practical point is that you are not tied to one operator. The eSIM moves between partner networks as you travel, so you can keep using data for maps, translation and app calls without choosing a carrier yourself.

Remember that the eSIM cannot be locked to one carrier. If you want a specific network, this product does not offer that choice. It gives you automatic selection instead.

Will your phone work in Thailand

Your phone must support eSIM and be carrier unlocked. Most recent iPhone, Samsung Galaxy and Google Pixel models do. If your phone meets both conditions, it works with this Thailand plan, and your own SIM stays in the phone for calls and bank texts.

Check the eSIM setting in your phone before you buy. On many models it sits under mobile data settings. Also confirm the handset is not locked to your home operator, because a locked phone cannot install a travel eSIM.

Once installed, the APN is set automatically on most phones. If data does not start, turn on data roaming for the eSIM line. That single step resolves most first connection issues.

Payment is by Apple Pay, Google Pay or a card your bank confirms. Prices are in US dollars and shown before payment, with nothing added at checkout. Plan sizes include 1, 2, 3 and 5 GB, and lengths are 7, 15 and 30 days, so you can match a plan to a short city break or a longer stay.

If you run low, data can be added to the same eSIM online without a new QR code. That keeps your setup unchanged and avoids a second installation.

Setting up before you fly

Install the eSIM on Wi-Fi before your flight and keep the QR code email safe. Your plan days start when the eSIM first connects in Thailand, not at purchase. Arriving with the eSIM already installed means data is ready as soon as you land.

Do the install at home where Wi-Fi is stable. Scan the QR code from the email, label the eSIM line clearly, and leave your own SIM in place for calls and bank texts. Then switch the travel line on when you land.

If data does not start after landing, turn on data roaming for the eSIM line. The APN is set automatically on most phones, so roaming is usually the only toggle needed.

Plans are sold in US dollars, with sizes of 1, 2, 3 and 5 GB and lengths of 7, 15 and 30 days. Top ups are available online to the same eSIM if you need more data mid trip.