Sounds like the Windows Mobile app Netcallerid: http://www.netcallerid.com/ http://www.netcallerid.com/ It displays the caller's full address, known associates

Sounds like the Windows Mobile app Netcallerid: http://www.netcallerid.com/ http://www.netcallerid.com/ It displays the caller's full address, known associates, whether they have FTC complaints, and the newest version will even pull Facebook and Twitter feeds for the caller.