# SMS to Thailand

Policy reference updated 2026-07-13T12:47:40.548525Z. Confirm current requirements, sender eligibility and your use case before launch.

[Contact sales](/demo?product=sms&source_page=%2Fsms-api%2Ffeatures%2Fdestinations%2Fthailand)

- Country code: TH (dialing +66)
- Channels available: sms, whatsapp, voice
- Two-way messaging: yes

### Sender types

| Sender | Direction | Throughput (msg/s) | Registration | Sender ID | Timeline |
| --- | --- | --- | --- | --- | --- |
| Alphanumeric Sender ID | one-way | — | required (alpha) | preserved | 21 |
| Long code (phone number) | two-way | — | required (numeric) | preserved | — |

### Rules

- Template pre-approval: no

Default validity period on operator's side is 6 hours. Messages will be marked as Expired if there is no final error received by the SMSC within the validity period.

Anti-Money Laundering Office (AMLO)’s guidelines emphasize the following criteria for URLs included in SMS content:
- URLs must direct users to legitimate and verified destinations.
- URLs must not lead to interactive platforms such as direct download sites or forms requiring user input.
- The purpose of the URL must be transparent, lawful, and clearly communicated in the intent registration process.
- URLs that are generated by URL shorteners, such as Bitly, are not allowed as it is considered leading to a platform not belonging to the owner of the Sender Name. These measures aim to enhance transparency and mitigate risks associated with misleading or unauthorized URL use, which could lead to misuse or fraud.
- URLs must be related to the brand sending the message and SMS content must include the brand name associated with the URL.

#### What this market refuses

Content should include the brandname.

Strictly no political, religious, racial, unsolicited promotion, adult, part time, gambling, fake loan, fake job or fake crypto content.

The character "กู้" in Thai means "loan" that it's not allowed.

[How sender-ID registration works →](/sms-api/features/compliance/sender-id-registration)

## The rest of the SMS platform

One API, one set of keys. Explore the other capabilities.

- [Sender-ID registration](/sms-api/features/compliance/sender-id-registration): Pre-register alphanumeric and dedicated senders where countries require it.
- [Routing](/sms-api/features/routing): Destination controls, carrier connectivity and reported routing outcomes.
- [Numbers](/sms-api/features/numbers): Long codes, short codes, toll-free, and alphanumeric sender IDs.
- [Sending](/sms-api/features/sending): The send API: segments, Unicode safety, batch, and idempotency.
- [Two-way](/sms-api/features/two-way): Inbound SMS and conversational replies as HMAC-signed webhooks.
- [All destinations](/sms-api/features/destinations): Coverage, sender types, and rules for every country Bird reaches.



## Related resources

- [SMS overview](/docs/guides/sms/overview) (docs)
- [SMS destinations](/sms-api/features/destinations) (product)

[Get an implementation brief](/learn/workspace?topic=sms-destinations)