SMS to Thailand.

Dialing code +66 · Asia. See which sender types, carrier registration timelines, and local compliance rules apply before you send transactional or marketing SMS to Thailand.

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Part of Bird SMS. Check sender eligibility, registration lead times, and local rules across every market you serve.

Policy last updated 13 July 2026

What you can send

SMS

Two-way messaging

Supported

Sender types

Compare the sender types listed for this destination, their registration requirements and recorded setup estimates. Confirm availability, throughput and timing for your use case.

Sender	Activation	Setup time	Sender ID	Notes
Alphanumeric Sender ID	Optional registration	~21 business days	The sender ID is overwritten with an alphanumeric sender ID chosen by the provider until registration is approved, then the approved sender ID is preserved. Overwritten to BCOTP	One-way only.
Long code (phone number)	Registration unavailable	No approval wait	Registration is unavailable and the sender ID is overwritten with an alphanumeric sender ID chosen by the provider.	Supports two-way replies.

Rules & regulations

Use this recorded country reference to prepare your launch. Requirements can depend on message purpose, sender type, network and recipient location; confirm the applicable rules before sending.

Template approvalNot required

Quiet hoursNo window recorded

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.

One API

Launch in new markets without changing your code

Send to every country from the same SMS API endpoint. Register or provision an eligible local sender, enable the destination country on your workspace allowlist so traffic can only reach approved markets, and track real-time carrier delivery receipts through signed webhooks.

Sending to Thailand, answered

Common questions about sender registration, two-way replies, and compliance when launching SMS in Thailand.

Do I need to register a sender before sending SMS to Thailand?

Registration is optional for an alphanumeric sender ID. You can send before approval, but the sender ID is overwritten until approval and preserved afterward. Registration is unavailable for a long code, and the submitted sender ID is overwritten. For an alphanumeric sender ID the name itself is registered. Confirm how the approved sender is presented on the destination networks.

Can I use an alphanumeric sender ID in Thailand?

Yes. Registration is optional: before approval the carrier overwrites the sender ID, and after approval the approved sender ID is preserved.

How long does sender registration take in Thailand?

The recorded estimate for an alphanumeric sender ID is about 21 business days; confirm timing before launch.

Can I receive replies from Thailand?

Yes, if you send from a long code. Replies are delivered to you as signed webhooks.

Are there quiet hours for SMS in Thailand?

No country-wide sending window is recorded here. Confirm the rules that apply to your message purpose and recipient location.

What other channels can Bird reach Thailand on?

WhatsApp and Voice, from the same account and API.

The rest of the SMS platform

Provision compliant senders, lock down workspace destinations, and deliver SMS across global mobile networks from one API.

Sender-ID registrationRegister branded alphanumeric sender IDs and phone numbers ahead of launch in countries that require carrier approval.RoutingProtect your budget with default-deny destination allowlists, upfront sender checks, and real-time carrier delivery receipts.NumbersProvision local long codes, verified toll-free numbers, short codes, and branded alphanumeric sender IDs for your markets.SendingSend OTPs, transactional alerts, and bulk notifications with automatic segment inspection and idempotent retries.Two-wayReceive customer SMS replies on the same phone number via HMAC-signed webhooks for support and confirmations.All destinationsCompare sender rules, registration lead times, two-way support, and consent requirements across every country Bird reaches.

Scale without
losing control.

Organize teams in workspaces, control API access, and trace changes through audit logs.

HarborOrganization

WorkspacesProductionSandbox

Delivery agent

API key · Customer operations team

Active

PermissionsAccess

EmailRead & write

SMSRead & write

ALAlex Lee AdminPermissions updated

Audit log

Production

Workspace: Production
Resource: Delivery agent
WhatsApp: Read accessRead & write

Succeeded

Workspaces Team roles API authentication

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