0151 355 4555

This service has been superceded by the International Telephone Validation service which covers North America as well as many other countries.

US Telephone Validation

The US Telephone Validation web service allows you to check whether a North American telephone number is valid.

The US Telephone Validation service can be accessed at http://webservices.data-8.co.uk/USTelephoneValidation.asmx

To find out more you can use the below links