While the best unlocked phones almost certainly support GSM carriers like AT&T and T-Mobile, it’s best to look for devices that work with all the major U.S. providers, including Verizon.

We’re not questioning whether you want to change carriers or plan to travel abroad — we’re just saying that Big Red may have unlocked your phone already. This is true for all Verizon ...

Almost all Verizon phones are available through the carrier itself, though many unlocked phones now work ... turned up a handful of flip phones for sale. We have not reviewed the majority of ...