317ad905_a__Data_APIs___ProgrammableWeb__Category
[API Name] WebServiceMart Phone3T [Description] The WebServiceMart Phone3T API is a service for validating phone numbers. It can also provide additional information such as the city, state, and country from which a phone number originates. The... [Updated] 07.20.2012 [Category] 
Reference
Cloud, Big Data, Data APIs | ProgrammableWeb