Pattaya SIM & eSIM Guide 2026 – AIS, True & dtac Prices

Pattaya’s attractions—from beachfront bars to bustling markets—rely on fast mobile data for navigation, ride‑hailing and social sharing. A tourist‑grade plan gives you unlimited 4G/5G speeds of 50‑100 Mbps, avoiding the throttling that can hit hotel Wi‑Fi during peak hours. With both AIS and True Corp covering the city excellently, choosing the right SIM or eSIM ensures you stay connected whether you’re on a scooter, at a beach café or exploring nearby islands.

Three carriers dominate Thailand: AIS, dtac and TrueMove H. After the 2023 merger of dtac with True, the combined entity operates as True Corp. 5 million subscribers and 98 % 4G coverage nationwide. True Corp serves around 38‑40 % of users with 97 % 4G reach. Both networks offer extensive 4G/5G coverage nationwide, but for tourists the key difference lies in brand‑specific perks rather than raw coverage.

Independent testing shows AIS and True Corp both deliver "excellent" signal strength throughout Pattaya. Typical download speeds range from 50 to 100 Mbps, with no reported dead zones in the city centre or along the main beachfront. AIS is rated Best Overall Coverage for islands and remote parks, while True Corp scores strongest inside urban corridors such as Pattaya’s central districts.

AIS offers a physical 8‑day tourist SIM for THB 449 that includes unlimited 5G/4G data and a THB 100 call credit. The 30‑day version costs THB 1,199 with the same unlimited data and call allowance. For eSIM users, an 8‑day plan provides 25 GB of 5G/4G data for THB 399 plus THB 15 call credit, free AIS SUPER WiFi and a bundle of seven social apps. The 30‑day unlimited eSIM is priced at THB 1,699 with identical data limits, call credit and WiFi perks. Physical SIMs can be bought at AIS counters in Suvarnabhumi (gates 6‑7, arrivals), Don Mueang (Arrivals Hall 1) and Phuket airports, as well as at 7‑Eleven, Tops Daily and AIS retail shops across the country. A valid passport is required for purchase.

After the merger, dtac’s Happy Tourist eSIM remains a popular choice. The 8‑day eSIM costs THB 299, offering unlimited internet up to 15 GB at maximum speed, THB 15 free call credit, unlimited calls within the dtac network and five chat‑app bundles; users can also select their phone number. A 15‑day version is priced at THB 599 with a 30 GB data cap under the same terms. Physical Happy Tourist Infinite SIMs are available for THB 499 (8 days) and for longer stays: THB 349 for 10 days, THB 699 for 15 days, and THB 1,199 for 30 days, all providing unlimited internet and calls. dtac customer support is reachable at 1678.

True’s Thailand Tourist Infinite SIMs come in 8‑day, 15‑day and 30‑day unlimited data versions across 5G/4G/3G networks. @TRUEWIFI" and provide up to 15 minutes of local calls per session; additional minutes are billed at THB 5 each. International credit of THB 100 is available via the *00600* shortcode, and prepaid credit can be topped up to a maximum of THB 5,000 per SIM. Up to three SIMs per person are allowed, with passport verification required. The price for the 8‑day package is listed on the True website and should be confirmed before purchase.

com. This guarantees immediate network access on arrival and avoids queueing. AIS counters are located at Suvarnabhumi gates 6‑7 and Don Mueang arrivals; both sell physical tourist SIMs; eSIM QR codes are obtained online or via the TAGTHAi app. True and dtac cards are sold in their brand shops nationwide. Online purchase through the carrier’s website or via the TAGTHAi mobile app (AIS) delivers an eSIM QR code that activates instantly once you have a data connection.

Thai law requires passport registration for every tourist SIM, whether physical or eSIM. Each brand permits up to three active SIMs per traveler, with a prepaid credit ceiling of THB 5,000 per card. AIS plans bundle 100 THB call credit (physical) or 15 THB (eSIM). dtac’s Happy Tourist eSIM adds 15 THB free call credit and unlimited calls within its own network. True’s packages grant THB 100 international credit via *00600* and a modest amount of free local voice minutes. @TRUEWIFI" and "@dtac wifi" respectively.

If you encounter connectivity issues, first verify that your device supports 5G/4G bands used in Thailand. AIS offers app‑based support through the TAGTHAi mobile application; dtac’s help line is reachable at 1678, and True provides assistance via its official website chat. In Pattaya, many hotels and cafés have free Wi‑Fi where you can re‑activate an eSIM QR code if needed. For persistent problems, visiting a nearby carrier retail shop—often located in shopping malls or near major transport hubs—will allow staff to reset your profile on the spot.