Singapore
Last updated on 4/30/2026
Mandatory measures exist
Local Operators
| Operator | MNC | Numeric ID | Alpha ID | Short Code | Comments |
|---|---|---|---|---|---|
| M1 Singapore | 3 | Yes | Yes | Yes | - |
| SingTel | 1 | Yes | Yes | Yes | - |
| StarHub | 5 | Yes | Yes | Yes | - |
| TPG Telecom | 10 | Yes | Yes | Yes | - |
*Valid for all operators: Alpha reg: Please see below under “Important”.Longnumbers and Shortcodes only work, if dedicated ones are ordered.
Sender ID Types Availability
Sender ID registration requirements
To register an alphanumeric sender ID for traffic in Singapore, organizations must provide specific information and adhere to the registration requirements established by the SSIR.
Important: Alphanumeric sender IDs must be registered with the SSIR by the end client. Only registered sender IDs will reach users in Singapore. Organizations need a Singapore unique entity number (UEN) to complete the registration.
Foreign-based businesses can obtain a Singapore UEN by registering with the Accounting and Corporate Regulatory Authority (ACRA). They may also register for sender IDs through local affiliates that meet SSIR requirements.
Required Information for Registration
Organizations must submit the following details for sender ID registration:
- Sender ID
- Content samples
- Company name
- Company URL
- Company address
- Type of traffic (e.g., OTP, marketing)
- Company field of activity (e.g., insurance, clothing)
- VAT
A Letter of Authorization (LOA) on official letterhead, signed and stamped, is required. A digital signature stamp is not necessary.
Fees
Pricing varies; please contact Sales for the current rates for sender ID registration.
For more information, visit the SSIR Overview.
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.