Free tool

Free Phone Number Checker

Instantly check a number's country and format across 237 countries — unlock live status and spam score with the API.

Enter a number with its country code to check it.

What it checks

Four checks, two tiers.

Country & region
Identified from the dialing code, instantly and for free.
Format validity
Digit count and structure checked against the expected pattern.
Live active status
Whether the number is currently reachable — API only.
Spam / risk score
Aggregated report data on the number — API only.
Free layerCountry · Format
API layerActive status · Spam score
How it works

Format check now, live data on demand.

The free checker parses what you type against real dialing codes and plausible length rules — entirely in your browser, with nothing sent to a server.

Active-line status and spam scores are aggregated from live carrier reports and change constantly, so they're only accurate when pulled fresh — which is what the Lookup API does on request.

Who uses it

Sales & marketing

Clean a list before a campaign goes out, not after it bounces.

Support teams

Confirm a customer-provided number is real before you rely on it.

Fraud teams

Flag obviously malformed or disposable-looking numbers early.

Everyday users

Sanity-check a number before you save or share it.

Cleaning a whole list?

Verify numbers in bulk.

The Lookup API checks thousands of numbers per call, with live status and risk scoring included.

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FAQ

Questions, answered.

Live status & risk data

Check numbers with confidence.

Start a free trial to access the Lookup API, or book a demo to see it on your own data.

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