What to do
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Key facts
- Checked fact
- True and dtac currently offer tourist eSIM and physical SIM purchase channels online and through shops.
- Rule
- The operator terms require tourist SIM identity registration with a valid passport and can require later re-verification.
- NBTC foreign-customer limit
- Up to three registered numbers per provider for a foreign individualThis does not promise that every requested registration or retail channel will be accepted.
Before you go
Check
- Have the valid passport required by the documented tourist-SIM registration terms.
- Confirm device support for the selected eSIM or network before purchase.
- Use the current operator page or shop channel for plan terms and availability.
- If longer use is likely, confirm the 60-day re-registration path before relying on the number.
- Do not assume a top-up preserves the Tourist SIM, number, plan or eSIM after 60 days.
Detailed explanation6 short sections
Choose physical SIM or eSIM
AIS documents a tourist eSIM purchase path, while True/dtac documents both eSIM and physical tourist SIM channels. The supported distinction is the purchase path; device compatibility, network support and the actual offer still need separate confirmation.
For a physical SIM, use the operator's current shop channel rather than assuming every convenience store or Pattaya branch has the desired product in stock. For eSIM, confirm that the exact device and region variant supports the operator's current activation route before paying.
Compare the current operator offer
Open the current AIS or True/dtac tourist channel and compare the displayed format, price, data allowance, validity and activation instructions at purchase time. This answer intentionally does not reproduce package prices or gigabyte claims because the operator controls those live offers.
The evidence confirms documented purchase channels, not stock at every shop, coverage at a particular room or island, or the continued availability of one package. It does not support naming a best network or promising that an eSIM will activate on every device.
Prepare for passport identity checks
The operator terms require tourist SIM identity registration with a valid passport. NBTC's current liveness measure also asks a non-Thai user for the valid original passport when registering a new SIM or obtaining a same-number replacement SIM.
Use the identity channel the selected operator currently provides. The regulator facts do not prove that every retailer can complete every registration, that a copy will be accepted, or that remote or app verification works for every operator, device or document.
Plan before a Tourist SIM reaches 60 days
As checked on 2026-08-14, NBTC says Tourist SIM use is limited to 60 days and top-up alone cannot extend that period. Continued use requires identity re-registration with the provider. Treat this as a long-stay decision before relying on a visitor package for banking access, account recovery, work or ongoing contact.
Ask the operator which identity route, plan or account applies after re-registration and whether the existing number, package and eSIM can continue. The NBTC baseline does not promise number retention, the same plan, uninterrupted service or a particular operator outcome.
Keep the foreign-customer limit distinct
NBTC's measures limit a foreign individual's registrations to three numbers per provider and require passport identity. This is a per-provider regulator baseline, not a statement that three registrations will always be approved or that every sales channel handles the same customer profile.
If identity verification fails, a replacement is needed or service stops, contact the chosen operator through its current official channel. Use the separate NBTC complaint guide only for an unresolved telecom service dispute; do not treat a complaint as a way to bypass registration rules.
Recheck before purchase and longer use
Packages, validity, registration channels, liveness steps, number-retention options and eSIM support can change. Recheck both the operator offer and the NBTC rules by 2026-09-13, at purchase, and before the 60-day point if the Tourist SIM will be used longer.
This guide does not activate a SIM, submit identity, select a network or guarantee service continuity. Keep an alternative way to access essential accounts and official help until the selected number and device are working under the operator's current terms.
Evidence
Sources
4 dated records support the material facts on this page.
- AIS tourist SIM and eSIM (opens in a new tab)
AISofficial operatorChecked
- True and dtac tourist SIM and eSIM (opens in a new tab)
True Corporationofficial operatorChecked
- NBTC anti-technology-crime measures for foreign customers and Tourist SIMs (opens in a new tab)
Office of the NBTCofficial governmentChecked
- Liveness Detection for SIM registration (opens in a new tab)
Office of the NBTCofficial governmentChecked