I'm interested in selling my old phones that just sit in the closet, However I have a question/concern. I did a factory reset on the old phones, Yet when I go into the About Phone menu, On the sub category that shows signal, phone number, etc...It still shows my phone number up top.. My questions or concerns are. A) Is there a way to clear my number? B) Is this even an issue? C) Will it activate like a new phone for whoever buys it? Sorry for the dumb questions, I'd rather just know for sure before I sell anything. Any advice would be greatly appreciated! Larzuk.