Phone Number Parser

Uses a lookup of common country calling codes and basic formatting — not a full replacement for a dedicated phone validation library for production use.

How to use this phone number parser

  1. Type a phone number, ideally starting with "+" and the country code.
  2. See the detected country code, national number, and formatted versions.
  3. Useful for quickly checking or reformatting a number you've been given.

Why does the country code matter?

Without a country code, the same digit sequence is ambiguous — a 10-digit number could be valid in the US, but invalid or mean something different elsewhere. The "+" prefix and country code (E.164 format) make a number unambiguous internationally.

Does this validate that a number is real and reachable?

No — this only checks the country code and basic digit-count patterns, not whether the specific number is actually assigned to a real phone line. Only carriers can confirm that.

What if I don't know the country code?

If you omit the "+" and country code, this tool assumes the digits are a national number and can't reliably determine the country — always include the country code when possible for accurate parsing.