Paste up to 500 phone numbers (one per line). Validation uses libphonenumber-js and runs entirely in your browser: nothing leaves your device, nothing is stored.
| Input | Valid | E.164 | National | Country | Line type |
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Millions of rows, an API, or scheduled runs? Use Phone Number Validator (offline) on Apify (my own actor, pay per result).
Built and maintained with AI (Claude). Powered by libphonenumber-js.