How Can I Tell If A Phone Is Unlocked. Both of these puppies will work on Verizon, Sprint, AT&T and T-Mobile out of the box The vast majority of the US still gets their phones directly from the carriers, be it online or in their stores, but there is a growing trend to source them in a different way, with the latest reports pegging that slice of the market at 20% now. The reason is pretty simple - while previously it was near impossible to find a that will work with Verizon's voice and data services unless you got it from the carrier itself, approved for that network usage, times have changed. Nowadays, Qualcomm and other cellular modem makers have gotten so good in stuffing tens of LTE bands and filtering them without interference in a single chip, that more and more phone makers are offering unlocked phones that can work with any US carrier out of the box, Verizon and Sprint included. We won't bore you with LTE bands and CDMA support details, but will just list the best of those unlocked phones you can get right now, pop a SIM card, no matter which one that is, and hop between carriers with it like Bambi in the woods. Iphone 4s Unlock Apple more. The Galaxy S7 and S7 edge model numbers denoted with 'U' at the end, for unlocked, would work on all US carriers, and are prime for the taking over at 's USA store. They are currently discounted at that - the S7 edge goes for $650, while the S7 is $550. Cheap Iphone 5 Tmobile Unlock. How To Unlock Iphone 4 Without Apple Id.