I'm looking to purchase a 64GB 4S on eBay since I'm running out of space on my 32GB 4. I know with AT&T, you simply just swap out the SIM card and you're good to go. But with VZW, wouldn't the 4S be tied to the ptp's phone number? Or is it as simple as going online or calling their CS and activating the phone on my account? The reason I ask this is because I purchased a 4S a couple weeks ago via Apple's web site and they shipped me a phone that was programmed with someone's else's number. Because of the hassle, I returned the phone and went back to my 4. Thanks in advance.