Singapore Phone Number Format
Singapore phone numbers use the country code +65. A Singapore mobile number is 8 digits and is written 8123 4567 nationally, or +65 8123 4567 in international format. In E.164 (the format APIs expect) it is +6581234567, with no spaces or leading zero.
| Country | Singapore |
|---|---|
| Country calling code | +65 |
| Example mobile (national) | 8123 4567 |
| Example mobile (international) | +65 8123 4567 |
| Example mobile (E.164) | +6581234567 |
| National number length | 8 digits |
Validate a Singapore phone number
How to format a Singapore phone number
- Start from the national number as written locally: 8123 4567.
- Drop the leading trunk digit (the national prefix, usually a leading 0) if present.
- Add the country code +65 in front to dial from abroad: +65 8123 4567.
- For APIs, SMS, and storage, use E.164, no spaces or dashes: +6581234567.
Frequently asked questions
What is the country code for Singapore?
The international calling code for Singapore is +65. You add it before the national number (dropping any leading 0) when dialing from abroad, for example +65 8123 4567.
How many digits is a Singapore phone number?
A Singapore mobile number has 8 digits in its national significant number (the part after the +65 country code). Example: 8123 4567.
How do I write a Singapore number in E.164 format?
E.164 is the international standard most APIs and SMS gateways require: a plus sign, the country code, then the national number with no spaces, dashes, or leading zero. For Singapore that looks like +6581234567.
How can I check if a Singapore phone number is valid?
Paste the number into the validator above. 1Lookup parses it, checks it against Singapore's numbering rules, and returns its line type and carrier so you know whether it is real and reachable.