Answer to: Can you use Verizon on an AT&T iPhone 7 plusYou are correct an unlocked iPhone 7 At&t it will still work but it may not work very well. Here is an excerpt from the cNet article: ''Versions of Apple's new iPhone 7 geared for AT&T and T-Mobile networks reportedly use an Intel chip [modem] -- one that doesn't fully support older Verizon and Sprint network technology." So it is not only the At&t's version but also T-Mobile's. The solution is to buy a worldwide model of iPhone 7 directly from Apple. But doe many of us it may be too late because people signed 2 year contracts with At&t . Taking all this into account, one may think twice about unlocking their phones which is very hard anyway. But instead, opt for one of the trade-in programs if they want to switch carriers.