I have moved a zillion times all over the country in the last 10 or 11 years and I've only changed my phone number once. First, you have no roaming plans so when you move you just keep your old cell number. My sister moved to Florida years ago and still has her Seattle 206 area code cell phone. Next, you no longer have to change your number when you change your plan. You have the option to keep it. The only way you change is if you need to change area codes. I was listening to the LE initial interrogation of Casey and she says Zanie had several different plans (even names a few, which is surprising that she knows this much about a person she can't prove any contact with) but that she'd only lived in Orlando since Casey had known her. It's unlikely that someone in the same area, who makes a living watching children and is self-employed, would change her number so many times. That's losing money. It's such a hassle to let everyone know your new number. Sorry if there was already a thread for this; I did a search and didn't see one. So - have you changed plans and kept your number?