Number Verifier API

Validate and find details about phonenumbers.

The Number Verifier API can validate phonenumbers and even determine whether the number is active at the moment.

Validating phonenumbers before sending messages can help increase the deliveryrate and reduce costs.


Use your Product-token to authenticate. Find your Product-token in the Channels App.

Number Validation is available for all CM accounts with a Product-token.

Number Lookup is a paid feature which you can acquire via your Account Manager.