Sorry if this has been asked before, but Im currently a subscriber with AT&T and want to switch over to Verizon and port my number but Im worried I will lose my AT&T service until I receive the preordered Verizon iPhone 5 on 9/21. Can anyone confirm this wil not happen? I think I read on here that I should sign up as a brand new customer and get a brand new number and then when I receive the phone and go to activate it, tell Verizon to port over my old number from AT&T. Just want to make sure this is the case. It sounds sketchy and I just dont wanna get screwed in the end with Verizon service and 2 phone lines (the new number issued to me at signup and my old ported number.) Can someone please advise? Thanks