I had a problem a few years ago with a business number being portable when I moved. I was told the number was not portable because it had the wrong prefix or went to the wrong exchange. To keep the number working I had to pay for service on the old number and new number. All old number calls were forwarded to the new number and I got 2 phone bills. I herd of others in the same situation. I would try to make sure you get a number with the same area code and prefix for your town.
Tom
