China
Last updated on 4/30/2026
Mandatory measures exist
Local Operators
| Operator | MNC | Numeric ID | Alpha ID | Short Code | Comments |
|---|---|---|---|---|---|
| China Mobile | 0 | No | Yes | No | - |
| China Telecom | 11 | No | Yes | No | - |
| China Unicom | 1 | No | Yes | No | - |
*Valid for all operators: Sender changed to generic sender ID, Content whitelisting required.
Sender ID Types Availability
Sender ID registration requirements
To register for traffic in China, senders must possess a local business or entity. For assistance with sender ID registration, please reach out to Sales or support. Registration of the sender ID is mandatory.
Registered content must be sent in USC-2 encoding to comply with local regulations. Content is accepted only in English or Chinese. A Chinese Business License is necessary for registration.
The specific requirements for sender ID registration include a Chinese business license and, if applicable, a trademark document.
Documents & Data required for Sender ID registration
- Chinese business license
- Trademark document of the sender registered in China. If the trademark is owned by entities in other countries, the owner must provide a Letter of Authorization (LOA) to their company or entity in China.
- ID card number of any employee (a copy of the ID card is not required; only the number is needed).
- Sender ID
- Content samples (email or URL usage in the content is not permitted).
- Company name
- Company address
- Company URL
- VAT
- Type of traffic (for example, OTP, Marketing, etc.)
- Monthly volume
Additional information for partners and resellers
Partners and resellers must ensure that their customers are aware that the end customer, as the actual sender of the message, is responsible for the use, accuracy, and registration of the Sender ID. This includes ensuring that all required registrations, approvals, and supporting documentation are completed in accordance with applicable local requirements before traffic is sent.
LINK Mobility does not register Sender IDs on behalf of partners’ or resellers’ customers, unless otherwise agreed. LINK Mobility may provide support to partners and end customers throughout the registration process. Responsibility for providing correct information, obtaining any required approvals, and complying with mandatory Sender ID registration processes remains with the end customer. Partners and resellers should inform their customers of these obligations before sending traffic to destinations where Sender ID registration is mandatory.
Need guidance on SMS destination requirements?
SMS rules, documentation, and compliance requirements can vary by country and operator. Our local teams are ready to help you understand what applies to your destinations, including sender ID, routing, registration, and other local requirements. Visit our support section to get in touch.