Singapore: SMS delivery facts
SMS delivery to Singapore uses calling code +65. Alphanumeric sender IDs require pre-registration in the SMS Sender ID Registry (SSIR). English and Malay fit GSM-7 encoding while Chinese and Tamil force UCS-2, which shortens available segment lengths accordingly.
| Country calling code | +65 (ITU-T E.164 assigned country codes, retrieved 2026-07-27) |
|---|---|
| E.164 format | +65 followed by the national subscriber number, no leading trunk zero, 15 digits maximum overall (ITU-T E.164) |
| Alphanumeric sender ID | pre registration (per Singapore SMS Sender ID Registry (SSIR) requirement, retrieved 2026-07-26) |
| Registration regime | carrier-specific practice |
| Dominant language(s) | English/Chinese/Malay/Tamil |
| Native-text charset | GSM-7 (with caveats) — 160 characters per single SMS, 153 per concatenated segment (GSM 03.38 default alphabet vs script analysis, retrieved 2026-07-27) |
| Published smsroute rate | USD 0.025 per message, dated snapshot (source, retrieved 2026-07-27). Current rate and send path: rate card for Singapore |
Sender-ID rules
Alphanumeric sender IDs must be registered in the SMS Sender ID Registry (SSIR); unregistered alphanumeric senders are labeled 'Likely-SCAM' by default. (per Singapore SMS Sender ID Registry (SSIR) requirement, verified 2026-07-26)
Alphanumeric sender IDs must be registered in the SMS Sender ID Registry (SSIR); unregistered alphanumeric senders are labeled 'Likely-SCAM' by default. English and Malay fit GSM-7; Chinese and Tamil force UCS-2. GSM-7 therefore allows 160 characters in a single message or 153 when concatenated, while UCS-2 is limited to 70 and 67 respectively.
Character set and message length
Native English/Chinese/Malay/Tamil text is classed as GSM-7 (with caveats) here: 160 characters fit a single SMS and 153 per segment once a message is concatenated.
English/Malay fit GSM-7; Chinese and Tamil force UCS-2.
To count segments for a concrete message, use the UDH segment surgeon; to compare all 40 countries side by side, the country requirements explorer reads the same open dataset (CC-BY 4.0).
Every figure above is maintained by SMSRoute guides with a named source and retrieval date - the machine-readable copy for Singapore lives in api/v2/countries.json (CC-BY), field-level provenance included.
Frequently asked
- What is the calling code and published SMS rate for Singapore?
- The calling code is +65. The published rate is 0.025 USD (retrieved 2026-07-27).
- Do alphanumeric sender IDs need registration for Singapore?
- Yes, alphanumeric sender IDs must be registered in the SMS Sender ID Registry (SSIR); unregistered alphanumeric senders are labeled 'Likely-SCAM' by default.
- Which character sets and segment sizes apply to SMS in Singapore?
- English and Malay fit GSM-7 (160 single / 153 concatenated); Chinese and Tamil force UCS-2 (70 single / 67 concatenated).
- How do I test SMS delivery to Singapore without a local SIM?
- Delivery-testing services send to real local Singapore numbers so you can confirm handset delivery without owning a +65 SIM. SMSRoute accounts include free test credits that prove delivery.
- Can I use my company name as the sender ID in Singapore?
- Yes—if you pre-register the alphanumeric name in the SMS Sender ID Registry (SSIR). Unregistered alphanumeric senders are labeled 'Likely-SCAM' by default.
Related
- DLR status codes behind Singapore delivery reports
- Metrics to check before trusting a Singapore route
- South Africa: SMS delivery facts
- South Korea: SMS delivery facts
- Spain: SMS delivery facts
- Sender ID (glossary)
- GSM-7 (glossary) · UCS-2 (glossary)
- All 40 country fact sheets
Facts on this page are dated snapshots with named sources; rates change — the linked rate card is authoritative. Corrections: ops@smsroute.cc. Last verified 2026-07-27.