Thailand · Telecom, Internet & Apps

AIS

Thailand's largest mobile network operator by subscriber count, offering mobile, home internet, and TV services nationwide.

What it helps with

Mobile data with the widest coverageAIS has the widest 4G/5G coverage in Thailand, including islands and the north.
A tourist SIM on arrivalAIS booths at Suvarnabhumi, Don Mueang and Phuket airports sell tourist SIMs and register them with your passport.
Home fibre internetAIS Fibre provides home internet for people renting long term.

About AIS

AIS (Advanced Info Service) is Thailand's leading telecom operator, known for having the widest mobile network coverage in the country, alongside home fiber internet (AIS Fibre) and TV services, plus its own digital service ecosystem.

Key Features

Widest Network Coverage: Generally regarded as having the strongest and most extensive signal coverage in Thailand, including rural areas.
Flexible Prepaid and Postpaid Plans: A wide range of tariffs for different data and call usage needs.
AIS Fibre: Home fiber internet packages available in many regions.
myAIS App: Manage your plan, usage, bills, and promotions through a dedicated app.

How to Get Started

Visit an AIS store with your ID (and residence permit if a foreign national) to get a SIM card.
Choose a prepaid (pay-as-you-go) or postpaid (monthly contract) plan based on your needs.
Activate the SIM and top up or set up billing as required.
Manage your plan, usage, and bills through the myAIS app.

Before you use it

Sign-up: Every SIM must be registered with a passport; the shop takes a photo of you and the passport.
Good to know: Tourist SIMs also work as eSIM on compatible phones; ask at the booth.

English available

Frequently Asked Questions

Does AIS work with a foreign bank card in Thailand?: Not reliably - a foreign card may be declined. Check the notice above, or plan to use a local payment method.
Is AIS available in English?: Yes, AIS has an English-language interface.
Do I need a local phone number to use AIS?: No, an international phone number generally works for AIS.
Do I need local ID or residency for AIS?: No, AIS doesn't require local ID or residency for visitors.
Where can I use AIS?: iOS · Android · Web
How much does AIS cost?: Tourist SIM from about 399 THB for 5 days at airport booths (2026)