Colombia phone number validator
How the phone number format works
- Format
- Colombia phone number in national or international (+57) format
- Example
- +573211234567
Things to watch for
- Accepts national or international (E.164, e.g. +57...) format
- Validated with Google's libphonenumber; confirms the number is possible/valid for this country, not that it is currently assigned or reachable
^[+]?[0-9 ()\-]{6,}$A Colombian mobile phone number is a flat, 10-digit number starting with 3 — e.g. 3211234567, or +573211234567 in full international form — with no area code involved, unlike Colombian landlines which still use a regional prefix (Bogotá’s is the single digit 1). That nationwide, area-code-free mobile format is one of the simpler numbering plans in Latin America to validate correctly.
How this validator works
Type the number in local form or full international form (+573211234567); this tool checks the 10-digit length and the 3-prefix mobile pattern using Google’s libphonenumber library, entirely in your browser, with no server contact. Landline validation follows a different path — regional area code plus local number, with domestic long-distance dialing conventions that don’t apply to mobiles at all — so the validator doesn’t force every Colombian number through the same 10-digit-starting-with-3 rule.
What a pass doesn’t tell you
A pass confirms the number is shaped like a real Colombian mobile or landline number — it does not confirm the SIM is active, the line connected, or the number still belongs to whoever gave it to you.
Scope: this is a format check for catching a wrong digit count, a missing 3-prefix, or a mistyped area code before a number reaches a form or an SMS send — not a live carrier or ownership lookup.
Content last reviewed 2026-07-07.
phone number FAQ
Why don't Colombian mobile numbers need an area code?
Colombia's mobile numbering plan is nationwide and flat: every mobile number is 10 digits starting with 3, regardless of which city or region the SIM was issued in. Area codes only apply to Colombian landline numbers, not mobiles, which is different from several neighboring countries where mobile numbers are tied to a regional prefix.
Does a valid result mean the Colombian mobile number is active?
No. It confirms the 10 digits match a real Colombian mobile pattern — starting with 3, right length — not that the SIM is currently active or the line reachable. Only Colombia's carriers or the CRC (telecom regulator) can confirm that.
How is a Colombian landline number different from a mobile number?
Landlines pair a one- or two-digit regional area code — Bogotá's is 1 — with a local number, and need a domestic trunk 0 or a carrier-access code for long-distance dialing. Mobiles skip all of that: just 3 plus 9 more digits, dialed the same way nationwide.