I am thinking about buying a refurbished iphone 4s on gamestop.com, and I have a few questions. First, the one I'm looking at said's that it is for AT&T, which is good because that is the carrier I use. Before I buy it, how can I tell if it is unlocked. I don't want to purchase a contract by calling AT&T. If it is locked, how do I unlock it? I know that I can cut my sim card to the micro sim card size, but will that work, will I keep my number? If someone understands and has the answers please tell me!
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