# SMS to Singapore

Policy reference updated 2026-07-13T12:47:36.644802Z. Confirm current requirements, sender eligibility and your use case before launch.

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

- Country code: SG (dialing +65)
- Channels available: sms, whatsapp, voice
- Two-way messaging: yes

### Sender types

| Sender | Direction | Throughput (msg/s) | Registration | Sender ID | Timeline |
| --- | --- | --- | --- | --- | --- |
| Short code | two-way | — | required (short_code) | preserved | 84 |
| Alphanumeric Sender ID | one-way | — | required (alpha) | preserved | — |
| Long code (phone number) | two-way | — | required (numeric) | preserved | — |

### Rules

- Consent model: opt-in
- Template pre-approval: no
- Quiet hours: recorded; the sending window is not stated

This country has mandatory registration, and senders can be used only by clients who registered the sender and provided all documentation for approval. 
We can not register the sender ID on behalf of the client. 
Client has to register directly on the SSIR portal by following the steps on this page: https://sgnic.sg/faq/sms-sender-id-registry
Once the registration is completed, and SSIR letter of confirmation has been sent to the Client. 
Client has to submit a letter and ACRA document for internal sender approval. 
Unregistered sender ID can be approved from our side and if client accepts manipulation of the sender ID to generic sender Likely-SCAM.

#### What this market refuses

Unsolicited SMS from unknown sources related to loans, financial assistance, adult content, or online gambling/betting are considered spam and are not allowed.
Any message that arrives to the user who did not request the message can be reported to the Regulatory, and in this case, the Local Police is involved.

[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)