Now that's interesting. Why would porting your number to GV leave your account intact, but porting it to another carrier cancel's the account? If you can do that with GV, surely you can do that with another provider. Looks like the supervisors for the CSRs were not fully informed. I'm going to have to do more research.You do not lose your number if you plan properly. See my post on the Google Voice "trick". Worked great and allowed me to keep my 15 year phone number and get rid of rip off VZW.