AIS is one of the networks your eSIM may use in Thailand. Here is who actually decides which network you get, and what to do with that.
Quick answer
AIS says its 5G carrier aggregation combines the 2600 MHz and 700 MHz bands to raise upload and download speeds.
| Item | AIS |
|---|---|
| LTE (4G) | B1, B3, B8, B28, B40 |
| 5G NR | n78 |
| 5G launched | Live |
| Network code (MCC-MNC) | 520-03, 520-01 |
Checked against the sources on 2026-10-12. Only the bands a source confirmed are listed; the network may run others too.
An eSIM can only use AIS if your phone supports at least one band in this table. Before you fly, open your model's spec page on the maker's site and compare its LTE and 5G band lists.
Mobile networks in Thailand are licensed, and their spectrum assigned, by the National Broadcasting and Telecommunications Commission (NBTC). The bands above are the ones it allocates. A problem with the local network's own service goes to the operator first; a problem with your eSIM plan comes to us.
From the supplier record behind each package, 61 of the 121 plans we currently sell for Thailand declare AIS as a network the profile can reach, at 5G. The figure comes from the same catalogue that prices the plan pages, and it moves when the supplier revises the record.
| Network | LTE bands | 5G bands |
|---|---|---|
| AIS | B1, B3, B8, B28, B40 | n78 |
| True Move H | B1, B3, B5, B8, B40 | n78 |
A band shared across networks is one a single phone can use on all of them.
Nearly every travel eSIM is a roaming product: the profile picks a network by an order the supplier sets, not by the buyer. If AIS is weak where you are, try selecting NT or True Move H manually in the network settings, and keep data roaming on for the eSIM profile.
61 of our plans name AIS as reachable, but that is not a guarantee. Travel plans run over roaming agreements, so the network depends on the supplier behind the plan, your device and where you are.
At least one of these, LTE: B1, B3, B8, B28, B40; 5G: n78. Your phone's band list is on the maker's spec page for your model, under "Cellular" or "Network".
Yes. AIS has run commercial 5G, on n78. A travel plan only gets it when the plan permits 5G, your phone supports one of those bands, and you are inside 5G coverage. Miss any one and you fall back to 4G.
Check the carrier name at the top of the screen, or open the mobile-network settings and look at the operator list. If signal is poor, try selecting a network manually instead of automatic, but only one your plan actually supports.
Porsch Kunnipat Siramanakul
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Ranked by our value score. Each plan page lists the networks its supplier declares.
AIS / DTAC / TrueMove H
Exits in Singapore · AIS / DTAC / TrueMove H
Validity starts on first connection at the destination
AIS / DTAC / TrueMove H
Exits in Singapore · AIS / DTAC / TrueMove H
Validity starts on first connection at the destination
AIS / DTAC / TrueMove H
Exits in Singapore · AIS / DTAC / TrueMove H
Validity starts on first connection at the destination
14 countries · partner networks
Japan, Hong Kong, South Korea, Taiwan, Vietnam, Bangladesh, Cambodia, India, Indonesia, Laos, Macau, Malaysia, Philippines, Thailand
Validity starts on first connection at the destination
8 countries · partner networks
Vietnam, Cambodia, Indonesia, Laos, Malaysia, Philippines, Thailand, Timor-Leste
Validity starts on first connection at the destination
14 countries · partner networks
Japan, Hong Kong, South Korea, Taiwan, Vietnam, Bangladesh, Cambodia, India, Indonesia, Laos, Macau, Malaysia, Philippines, Thailand
Validity starts on first connection at the destination
