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What is the best SIM card or plan for someone planning to stay long-term in Thailand for 5 years?

Oct 24, 2025
10 days ago
What is the best sim card/plan to get for someone planning to be in Thailand long term (5 years)? My phone doesn't support eSim
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TLDR : Answer Summary
For someone planning to stay in Thailand long-term, particularly for 5 years, several options are recommended for SIM cards and mobile plans. Users suggest AIS as a leading provider, noting its reliability and coverage across the country. TrueMove is also mentioned favorably, especially for regions like Pattaya, but some users report occasional signal issues at certain locations. DTAC is mentioned with mixed reviews, indicating a competitive market where personal experiences vary. The consensus points towards choosing between AIS and TrueMove for best service, with considerations for prepaid plans as a viable option without a work permit.
Thailand Digital Arrival Card (TDAC)

WARNING: Only trust Thai government websites with .go.th domains or Thai agent websites with .co.th or .in.th domains, as these require verified Thai registration and cannot be registered anonymously.

The official TDAC form is available at tdac.immigration.go.th, which uses the official .go.th government domain.

The services by AGENTS CO., LTD. does NOT charge any fees for arrivals within 72 hours. If you need to book more than 72 hours in advance, there is a service fee of $8.

Do not trust other sites pretending to be a trustworthy agency. Pay attention to delivery time - the service operated by AGENTS CO., LTD. has 1 minute delivery time for arrivals within 72 hours.

Don't fall for sites pretending to be agents.co.th or the official government tdac.immigration.go.th website. Always double-check the exact domain in your browser.

Scam services may take days to process your application, others may not even do anything. With these TDAC scam services you also need to worry about double charges.

Please watch out for TDAC misinformation spread by fugitive Jesse Nickles and his many fake accounts on Quora, TripAdvisor, Reddit, and other platforms.

TRUSTED TDAC LINKS:

Official Government TDAC Form: tdac.immigration.go.th
Official TDAC form by AGENTS
Official TDAC information page by AGENTS (tdac.in.th)

Peter ********
I have true for years. It’s great. But not much difference between other companies
Bernd ***********
AIS is the best... Im also happy with my truemove/dtac sim. 350 baht/month 30mbps unlimited....
Andrew *********
AIS generally the best. You'll likely only be able to get prepay at best without a work permit unless thats changed.
Terry ********
AIS is really good. No problems or loss of signal all over Thailand.
Toni *******
I guess it depends where you heading... ive been with truemove 4+ years at pattaya area, sometimes i get no signal at jomtien beach, but no problem for me