A:Answer Unlocked pretty much means you can go elsewhere with the CDMA SIM chip. I wouldn't try to go international with it, unless that carrier does a system set on the phone to handle ICP. T-Mobile.. At&t, and Cricket play well on the same band, as Verizon, Sprint (Soon to be on the first band when they merge. Or up the game and stay the same, hard to tell. But a SIM is a SIM. Unlocked will play nice with the carrier of your choice