SMS rules for Singapore
+65
Sender ID restrictions
| Alphanumeric sender ID | Supported |
|---|---|
| Foreign numeric sender ID | Supported |
| Local numeric sender ID | Supported |
| Generic sender ID prohibited | Yes, you can |
| Sender ID can be changed | No, you can't. |
| Virtual number required | Yes, you can |
| Marketing requires opt-in | No, you can't. |
| P2P prohibited | Yes, you can |
| Handset DLR unavailable | No, you can't. |
Content restrictions
| Category | Status | Notes |
|---|---|---|
| Gambling / Games | PROHIBITED | Detected from provider text: gambling, betting, casino |
| Political content | PROHIBITED | Detected from provider text: political |
| Religious content | PROHIBITED | Detected from provider text: religious |
| Marketing / Advertising | PROHIBITED | Detected from provider text: marketing, promotion |
Notes
Country: Singapore (SG).
In Singapore, specific regulations have been introduced for SMS sending as a result of increasing spam and smishing. The local regulator, Infocomm Media Development Authority (IMDA), has established a registration system for Sender IDs, called the Full SMS Sender ID Registry Regime, which came into effect in March 2022. Organizations must register their Sender IDs directly with IMDA to protect them. All SMS aggregators wishing to send registered Sender ID messages to Singapore must be licensed by IMDA. It is important to note that all Sender IDs must be approved by the regulator.
From January 31, 2023, it has become mandatory to register Sender IDs with IMDA. Only Sender IDs registered in the regulator's system will be accepted in Singapore. Sender IDs that are not registered will be converted to a generic Sender ID with the designation "Likely-SCAM" until further notice. To avoid issues with SMS traffic, it is recommended that customers register their Sender IDs with IMDA as soon as possible. It is also important to be aware that the Sender ID is case sensitive. Once the Sender ID is registered, customers should contact their account manager for assistance in getting the Sender ID whitelisted.
It should be noted that the original transition period of six months from 31 January 2023 has been extended beyond 1 August 2023. All unregistered Sender IDs will continue to be marked as "Likely-SCAM" until further notice.
In Singapore, specific regulations have been introduced for SMS sending as a result of increasing spam and smishing. The local regulator, Infocomm Media Development Authority (IMDA), has established a registration system for Sender IDs, called the Full SMS Sender ID Registry Regime, which came into effect in March 2022. Organizations must register their Sender IDs directly with IMDA to protect them. All SMS aggregators wishing to send registered Sender ID messages to Singapore must be licensed by IMDA. It is important to note that all Sender IDs must be approved by the regulator.
From January 31, 2023, it has become mandatory to register Sender IDs with IMDA. Only Sender IDs registered in the regulator's system will be accepted in Singapore. Sender IDs that are not registered will be converted to a generic Sender ID with the designation "Likely-SCAM" until further notice. To avoid issues with SMS traffic, it is recommended that customers register their Sender IDs with IMDA as soon as possible. It is also important to be aware that the Sender ID is case sensitive. Once the Sender ID is registered, customers should contact their account manager for assistance in getting the Sender ID whitelisted.
It should be noted that the original transition period of six months from 31 January 2023 has been extended beyond 1 August 2023. All unregistered Sender IDs will continue to be marked as "Likely-SCAM" until further notice.
Last updated: April 20, 2026