fast & reliable

Phone Number Validation in Real-Time

Integrate our Phone Number Validation API directly into your website and your customers will be able to fix errors in their data instantly - only valid, reachable phone numbers will be accepted. To ensure full compliance with the FCC Telephone Consumer Protection Act (TCPA), the API also detects the exact line type (landline vs. mobile).

Just register for a free API key and start testing our service now.

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Available 24/7

Our Phone Number Validation Online API is hosted at three different locations. We guarantee an availability of 99.9%, and requests will be typically answered within 500ms. Please see the API server status page for real-time availability information.

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Prices & Ordering

If you plan to verify more than 100 phone numbers, please have a look at our pay-as-you-go pricing model and the subscription plans we offer.
data protection and privacy guaranteed

Data Protection and Privacy

Your data is safe with us. Only you have access to your data. We store your data only for the validation process. All data from API requests and batch/list processing will be automatically deleted within 14 days. Please see our Data Protection and Privacy Policy for details.