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Latin America · +57

Colombia phone number format

  • Country code +57
  • Trunk prefix 0

Reviewed by Sujan ThapaliyaLast updated

What does a Colombia phone number look like?

10 digits: landlines start 60X, mobiles start 3. Landlines are written +57 60X XXX XXXX and mobiles +57 3XX XXX XXXX. In full international (E.164) format a Colombia mobile is written +573201234567: the country code +57, with the national trunk prefix 0 removed, and no spaces or punctuation.
The anatomy of a Colombia phone number under ITU-T E.164: country calling code 57, then the national destination code, then the subscriber number, to a maximum of fifteen digits after the plus. Nationally a Colombia number is written +57 60X XXX XXXX with the trunk prefix 0; in E.164 the prefix and the spacing both come off.
National formatting is for people. E.164 is for databases, APIs, and caller ID — store Colombia numbers in the right-hand form.

Format rules

Country code
+57
National number length
10 digits: landlines start 60X, mobiles start 3
Trunk prefix
0
Used only domestically. Removed in international format.
Landline pattern
+57 60X XXX XXXX
Mobile pattern
+57 3XX XXX XXXX

Examples

Colombia phone number examples

These are format patterns showing digit grouping and prefix rules. They are examples of shape, not working numbers; do not use them to test a live call path.

TypeWritten domesticallyInternational (E.164)
Landline0601 234 5678+576012345678
Mobile03XX XXX XXXX+573201234567

A quirk of Colombia numbering

Colombia moved to fixed 10-digit dialling in 2022: every landline now starts 60 followed by the old single-digit city code.

Validation

How to validate a Colombia number

Validating a phone number is three separate checks, and conflating them is the usual source of bugs:

  1. Format: does it match the shape for Colombia? 10 digits: landlines start 60X, mobiles start 3, after the country code and with the 0 stripped.
  2. Allocation: is the prefix actually in use? A number can be the right length and still belong to an unallocated range.
  3. Reachability: is there a live subscriber? Only a carrier lookup (HLR or equivalent) answers that, and it is the only check that catches disconnected numbers.

For form validation, check format only and be permissive: accept spaces, dashes, brackets, and a leading 0 then normalise. Rejecting a real customer because they typed their own number the way they normally write it is a far more expensive error than storing one badly formatted row.

Store in E.164 (+573201234567) and format for display at render time. Storing the display format is how a database ends up with the same person recorded four different ways.

Format any number instantly

Paste a number into the free phone number formatter to convert it to E.164 and see whether it matches Colombia’s format rules. No sign-up.

Frequently asked questions

What does a Colombia phone number look like?
10 digits: landlines start 60X, mobiles start 3. A landline is written +57 60X XXX XXXX and a mobile +57 3XX XXX XXXX. In full international format that becomes +573201234567.
How do I write a Colombia number in international format?
Start with +57, remove the leading 0 from the national number, then append the rest with no spaces or punctuation. +57 601 234 5678 becomes +576012345678.
How many digits is a Colombia phone number?
10 digits: landlines start 60X, mobiles start 3.
How do I tell a Colombia mobile from a landline?
By the prefix. Mobiles follow the pattern +57 3XX XXX XXXX, while landlines follow +57 60X XXX XXXX.
Should I store phone numbers with the plus sign?
Yes. Store every number in E.164: leading +, country code, national number, no spaces or punctuation, up to 15 digits. It is the only format that is unambiguous internationally, and it is what makes deduplication work. Format for display, store canonical.

Sources

  1. ITU-T Recommendation E.164 — The international public telecommunication numbering plan — International Telecommunication UnionThe international number format, the 15-digit maximum, and how country codes and national numbers compose.
  2. ITU-T International Numbering Resources — International Telecommunication UnionThe assignment of country calling codes and the published national numbering plans they belong to.

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