International Phone Number Formatter - E.164 & Local Formats

How to use this tool

1. Select the country of the phone number.
2. Enter the phone number in any format (digits, spaces, dashes, parentheses).
3. The E.164, national, and international formats are shown instantly. Copy any format.

International phone number format

The E.164 format (ITU-T Recommendation E.164) is the international standard for phone numbers. Format: +[country code][area/city code][subscriber number]. No spaces, dashes, or parentheses. Example: +14155552671.

Common country codes

Using phone numbers in software

When storing phone numbers in a database or sending them via API, always use E.164 format. Benefits include:

• Unambiguous: no guessing about country code or leading zeros. "+1" always means North America, "+44" always means UK.
• Searchable: consistent format allows exact-match queries and deduplication. Storing "(415) 555-2671" and "4155552671" in different records would be duplicates you couldn't detect.
• SMS/Voice API compatible: Twilio, Vonage, AWS SNS, and other messaging platforms all require E.164 format for phone numbers.

Tel: link format for web pages

To make a phone number clickable on mobile web pages, use the tel: URI scheme with E.164 format:

<a href="tel:+14155552671">(415) 555-2671</a>

The display text can be in any human-readable format; only the href needs to be E.164. This works on iOS, Android, and desktop browsers (which may open a VoIP application).