Alright, I'm gonna try to explain this the best I can. So bear with me. My girlfriend is planning on pre-ordering the iPhone 5 this Friday on AT&T, but she is wanting to start her own contract. She is currently on her mom's plan which is on AT&T too but she does not want to get a new number if she does not have to. I didn't know the answer to this question so I figured I would come here and ask you all. Would they be able to do a number port in that situation? Or will she need to get a new number? Thanks!