Regex Library
Regex Library

9 patterns

Phone Number Validation Regex Patterns

Phone number validation varies enormously by country. These patterns cover international E.164 format, French numbers, US numbers, and flexible formats that accept common separators like spaces, dashes, and parentheses.

Common Use Cases

Contact formsInternational phone inputSMS validationPhone number extraction

Frequently Asked Questions

What is the best regex for international phone numbers?

E.164 format: ^\+[1-9]\d{6,14}$ - it covers all valid international numbers.

Should I validate phone numbers with regex?

Regex is good for basic format checking. For production, consider a library like libphonenumber that handles country-specific rules.

How do I allow spaces and dashes in phone input?

Use a flexible pattern and normalize before saving: strip all non-digits from the input.

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