You might check with the FCC

by birdmantd Moderator - 12/30/12 4:21 PM

In Reply to: Info by JHJMC

Try going to their internet site and searching for "LNP" (Local Number Portability for answers to your problem. Wish I could answer your question with any certainty, but the suggestion is a starting point. Normally you don't have to contact the company you are porting out of (At&t in your example). Hope this helps.