Phone Number Validator

International phone numbers follow the E.164 standard defined by the ITU-T. A valid E.164 number consists of a country code followed by the subscriber number, with a maximum of 15 digits total.

E.164 Format

+[country code] [subscriber number]

What Gets Checked

• Presence of a valid country calling code (1–3 digits)
• Total digit count within E.164 range (minimum 7, maximum 15 digits)
• Number contains only digits, spaces, dashes, dots, and parentheses
• Country identification based on calling code prefix

Common Country Codes

Limitations

This validator checks the format and structure of a phone number. It does NOT verify:

• Whether the number is currently in service
• Whether the number can receive calls or SMS
• The carrier or line type (mobile, landline, VoIP)
• Local number portability status

You can embed this util on your own site as a widget. Adding ?embed=1 to the URL loads a compact version with just the tool itself; no header, menu, or documentation. Paste this snippet into your HTML:

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