Thai SIM cards and phone numbers
Registering a SIM in your own name, the 2026 rules, and why it matters for banking.
CHECKED 16 OCT 20261 min read2 sources
Why your number matters
Your Thai phone number ends up tied to your bank app, delivery apps and one-time passcodes. If it's registered to someone else, or it lapses, you can get locked out. Get one in your own name with your passport.
The current rules
- Foreigners register SIMs in person with a passport (AIS, True and dtac shops, and many airport counters).
- You can hold up to three SIMs per provider.
- A new SIM must be activated within 60 days of registration, or you'll have to verify your identity in person again.
- Thailand is cracking down on scam calls, so expect more identity checks. If a shop asks you to re-verify, do it. Unverified numbers can be cut off.
Never miss your own deadlines
Answer five quick questions and we'll list every date that applies to you: 90-day reports, extensions, re-entry permits and tax. Free to start.
Sources we checked
- 1.Mobile Ecosystem Forum: NBTC anti-fraud measures (June 2026)
- 2.Tilleke & Gibbins: telecom registration rules
General information, not legal or tax advice. Immigration offices don't all apply the rules the same way, so check anything important with your local office. Spotted something out of date? Email Joshua.