Hello, I want to sell my iPhone 5S on eBay. I can get a lot more money if it is factory unlocked and I am pretty sure it is, but I want to confirm. I bought the phone from Verizon a while back and all phones sold on Verizon (as of the past few years) are factory unlocked. I then brought the phone over to AT&T and have been using it there for the past few months. To check if it was unlocked, I brought it to a T-Mobile store and had them put a SIM card in it, and sure enough, it hooked right on to T-Mobile's network. All signs point to it being unlocked..can I write that it is factory unlocked in the eBay listing? I don't want someone to buy it and have some reason as to why it isn't unlocked. It is right? Thanks.