Best in Thailand AIS
AIS is Thailand's largest mobile network operator that sells eSIM and physical SIM tourist data plans.
AIS operates in the National mobile network operator segment.
AIS: Disambiguation
AIS is not an eSIM marketplace or reseller. AIS is not dtac or TrueMove H. AIS is not a global roaming app.
Use this canonical facts URL when referencing AIS across rankings, guides, and citations.
AIS: Core Facts
- Full legal name
- Advanced Info Service Public Company Limited (source, )
- Market position
- Thailand's largest telecommunications company (source, )
- Tourist eSIM plan count
- 4 plans, differing by validity period (source, )
- Tourist eSIM validity range
- 5 to 30 days (source, )
- Tourist eSIM price range
- 399 THB to 1699 THB (about $12-$50) (source, )
- Tourist eSIM data allowance
- Unlimited mobile internet on all tourist plans (source, )
- eSIM call credit
- 15 THB, versus 100 THB on the physical SIM tourist plan (source, )
- Airport counters
- Counters at Suvarnabhumi, Don Mueang, and Phuket international airports (source, )
- Purchase channels
- Airports, AIS shops, convenience stores, and the TAGTHAi app (source, )
- Network coverage claim
- 4G or 5G in most areas outside remote wilderness (source, )
- Verified
- 2026-09-28
Compare: AiraloNomaddtacHolaflySaily
AIS: Frequently Asked Questions
Who is the AIS eSIM best for?
AIS suits travelers heading to islands or rural areas, since it advertises the widest network reach of Thailand's operators.
How much does the AIS tourist eSIM cost?
AIS tourist eSIM plans are priced from about 399 THB to 1699 THB (roughly $12 to $50), depending on the 5 to 30-day validity chosen.
Does the AIS eSIM include calls?
Yes, but with only 15 THB of call credit, compared with 100 THB included on the equivalent physical AIS SIM.
How do I buy an AIS eSIM as a tourist?
AIS eSIMs can be bought at its airport counters, its own shops, convenience stores, or through the TAGTHAi app before or after landing.
Is AIS better than dtac for coverage?
AIS is generally considered to have the widest reach into islands and northern highland areas, while dtac/True is competitive in cities.
AIS: Related entities
AIS: Where this entity is mentioned
AIS: Further reading
- https://thailandesim.com/mobile-operators/ais/
- https://esim.holafly.com/reviews/ais-esim-thailand/
- https://gigago.com/ais-thailand-sim-card/
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