Bulk phone number validator
Upload a CSV and validate thousands of numbers in one go. Get line type, carrier, location and risk score for every row, then download the cleaned list.
- CSV upload
- Every field, every row
- Download results
Bulk validation
CSV upload · Free account required
What the bulk validator tells you
CSV upload
Drop in a spreadsheet export from your CRM or dialer.
Every field, every row
Validity, line type, carrier, location and risk score.
Download results
Get a cleaned CSV back, ready to re-import.
Runs in the background
Leave the page — we email you when the job is done.
Questions about the bulk validator
Need more than a few checks a day? Create a free account for 100 credits, bulk CSV uploads and API access.
Is bulk validation free?
New accounts get 100 free credits — one credit per number — so you can try bulk validation on a small list at no cost.
What file format do I need?
A CSV with one phone number per row. Include the country code, or add a country column and we’ll use it.
Can I validate lists through the API?
Yes. Use the bulk endpoint or loop over the single-number endpoint; see the API docs for limits and examples.