# SMS to China

Policy reference updated 2026-07-13T12:47:06.885266Z. Confirm current requirements, sender eligibility and your use case before launch.

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

- Country code: CN (dialing +86)
- Channels available: sms, whatsapp, voice
- Two-way messaging: no

### Sender types

| Sender | Direction | Throughput (msg/s) | Registration | Sender ID | Timeline |
| --- | --- | --- | --- | --- | --- |
| Alphanumeric Sender ID | one-way | — | required (alpha) | preserved | 14 |

### Rules

- Template pre-approval: yes
- Quiet hours: recorded; the sending window is not stated

Custom alphanumeric Sender IDs are not supported in this country. Senders will automatically be replaced with a random numeric code starting with **106**.

- All message content must include a registered **【Signature】** at the beginning of the message. Messages without a registered signature will fail to deliver.
   - Pure English signatures are not supported.
   - Only companies with a local business license can register a signature.

- All templates must be whitelisted before sending, particularly those containing contact information or URLs.
   - Each template may contain a maximum of 2 fixed contact details and 1 URL.
   - Contact information and URLs cannot be included in OTP messages.
   - Top-level and second-level domains must be fixed values (not variables) and must match the registered signature.

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

## How sending works

Use the same SMS API across supported destinations. Prepare an eligible sender, enable the destination and apply the recipient permission your message requires. Track the accepted message through carrier submission and the delivery reports available for that route.

## 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)