A:Answer TracFone is a prepaid MVNO that runs on all four major networks—Verizon, AT&T, T-Mobile and Sprint. If you're bringing your own phone to TracFone, the network you use will be dictated by which carrier you originally bought it from. For example, if it's a Sprint phone, or if you bought it from an MVNO that runs on the Sprint network (like Boost), that's the network you'll be tethered to. If, on the other hand, you're buying a device from TracFone, your network will be dictated by the specific device. Some of their phones are tuned to T-Mobile, others to Verizon, others still to Sprint and AT&T. Best Buy can activate the TRACFONE - LG Journey - Aurora Black with your prefered network carier...^IFV