Free Phone Number Format Checker

Validate international phone numbers, check country codes, and convert to E.164 format 鈥?instantly and free.

How to Use This Tool

1. Paste a phone number in any format 鈥?with or without country code, spaces, dashes, whatever.
2. Click "Check Format" or just type 鈥?it validates in real time.
3. See results instantly: country detected, format validity, E.164 conversion, and digit count check.

This tool uses the international E.164 standard to validate phone numbers. See our complete country format guide for detailed reference tables covering 50+ countries.

What This Tool Checks

• Country Code 鈥?Detects and validates the international dialing prefix
• Digit Count 鈥?Checks against expected length ranges for each country
• Format Validity 鈥?Identifies invalid characters, missing codes, or structural problems
• E.164 Conversion 鈥?Outputs the number in standard international format

Format checking is step one. For full validation 鈥?checking whether a number is actually active and in service 鈥?use a verification API or bulk detection platform.