FAQ
Do the plans include calls?
The Unlimited + calls plans include calls and SMS. Outgoing calls and SMS work after a passport check at a True or dtac store in Thailand; data and incoming calls work right away. The 15 GB and 50 GB plans are data only, so keep your home SIM on for calls and SMS.
Do I need to turn on data roaming?
No. These eSIMs run on the local True–DTAC network in Thailand, so data roaming is not needed for this line.
Where should I install it?
On Wi-Fi at home or in the airport lounge, before you need maps outside Suvarnabhumi or Don Mueang.
Does it work on the islands?
Use it in Bangkok, Chiang Mai, Phuket, and Samui the same way. Signal on remote beaches and boats depends on the local network.
Can I buy two plans in one order?
Yes. One checkout, one email, and a QR for each eSIM.
Do I upload a passport?
Not at checkout. The data plans never need one. On the Unlimited + calls plans, Thailand’s NBTC rules require a passport check at an official True or dtac store in Thailand before outgoing calls and SMS work. Data and incoming calls work without it.
Do I need to show my passport for the Unlimited + calls plans?
Only if you want outgoing calls and SMS. Data and incoming calls work right after activation. Under Thailand’s NBTC rules, from May 20, 2026 outgoing calls and SMS on the 8, 15, and 30-day Unlimited + calls plans need a quick passport check at an official True or dtac store in Thailand.
Why can’t I make calls or send SMS on my Unlimited + calls eSIM?
Outgoing calls and SMS turn on after a quick passport check at a True or dtac store in Thailand, as required by the NBTC since May 20, 2026. Your internet and incoming calls already work, and WhatsApp or LINE calls work over data without the check.
How much data do I need for a week in Thailand?
Most travelers use 1 to 2 GB a day for maps, Grab, chat, and social media, so 15 GB covers a typical week. Heavy video or laptop use suits an Unlimited + Calls plan.
Does my phone support eSIM?
Dial *#06#. If you see an EID number, the phone supports eSIM. It must also be unlocked from your home carrier.
Do I still need the Thailand Digital Arrival Card?
Yes. The eSIM does not replace it. Submit the free TDAC at tdac.immigration.go.th within the three days before you arrive.
What if the QR never arrives?
The order page keeps it. If the eSIM cannot be issued, our team is alerted and the order is refunded.