Formatting telephone numbers

ArtPort uses the E.164 standard for recording and displaying phone numbers. This standard requires that a number be properly formatted.

Rules

1. It must begin with a '+' symbol prefix.
2. It must include the country code.
3. It must exclude any leading zeros.
4. It must include the area code.
5. It must include all remaining digits.
6. It must not include internal routing e.g. office extensions.
7. It must not include any other characters e.g. spaces or hyphens.

Examples

The following table demonstrates how a locally-formatted number in a particular country should be written to be E.164-compliant.