Country code · Asia
Singapore country code: +65
How to write Singapore phone numbers for your CRM, dialer or SMS tool, and what TrueSearch does with them.
| Country or territory | Singapore |
| Calling code | +65 |
| ISO 3166 code | SG |
| Region | Asia |
| E.164 format | +65 followed by up to 13 digits |
The length of the national number varies by country and number type. E.164 caps the whole number at 15 digits, so at most 13 digits follow +65.
Checking Singapore numbers with TrueSearch
Write Singapore numbers with the + prefix (+65…) or the 00 international prefix. TrueSearch accepts international numbers in that form when they have 8 to 15 digits and runs the same live line type and carrier check it runs on US numbers. Always include the +: without it, TrueSearch reads a 10-digit number (or an 11-digit number starting with 1) as a US or Canadian number, and marks other numbers "not a phone number" without counting them against your credits.
TrueSearch is built mainly for US and Canadian calling and texting lists. If most of your list is Singapore numbers, run a small batch first and look at how many come back with a line type.
Upload a CSV or Excel file. Get back every number marked valid or dead, mobile, landline or VoIP, with carrier.
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Questions
What is the country code for Singapore?
+65.
How do I format a Singapore number in E.164?
Write +65 followed by the national number with no spaces, dashes or brackets. Many countries use a trunk prefix (often 0) when dialing at home; it is normally dropped in the international form. E.164 allows at most 15 digits in total, so the national part is at most 13 digits.
Can TrueSearch check Singapore numbers?
Write Singapore numbers with the + prefix (+65…) or the 00 international prefix. TrueSearch accepts international numbers in that form when they have 8 to 15 digits and runs the same live line type and carrier check it runs on US numbers. Always include the +: without it, TrueSearch reads a 10-digit number (or an 11-digit number starting with 1) as a US or Canadian number, and marks other numbers "not a phone number" without counting them against your credits.
Will every Singapore number get a line type?
Not always. Line type and carrier come from live carrier data, and how much detail comes back can vary by country. When no line type comes back, the row is marked "unknown line type" and is not marked keep. A number marked keep is valid and mobile.
Does TrueSearch check Do Not Call lists?
No. TrueSearch does not check the US National Do Not Call Registry, state DNC lists, litigator lists or any country's do-not-call register.
More Asia calling codes
Free tool: convert a list of numbers to E.164
Calling codes: ITU-T E.164 country code assignments. This guide is general information, not legal advice. TrueSearch for Business checks validity, line type and carrier from licensed telecom data. It does not check the National Do Not Call Registry, state DNC lists or the FCC Reassigned Numbers Database. Not a consumer reporting agency; not for FCRA purposes.