DOTS IP Address Validation (referred to as “IP Address Validation”) is a publicly available XML web service that provides lookup information about an IP address. The service provides city, state, country, latitude and longitude coordinates, and proxy, ISP, and network information.

IP Address Validation can help provide instant location verification to websites or data enhancement to contact lists.

Developer Guide

Integration Basics

NOTE: SOAP is done via POST, only with special XML markup in the post-body.