Wanted to get a BOGO offer for a phone from AT&T, problem is I need to add a line to my family account in order to get the offer, and my account is full with 10 people on it. Thought of an idea of removing and readding my line, but I don't want to lose my number. Is there a prepaid provider that allows you to port your number before paying anything? Not interested in paying for a month of service. Any ideas would help. Thanks