Can I use a Verizon iPhone 6 on the AT&T network?

There is no 'Verizon' iPhone 6. All iPhones are made by Apple. Carriers may carrier lock the handsets they distribute for subsidation, but there is no carrier branding on the iPhone. read more

You can use iPhone 6 and newer models in more than 200 countries. Please use our International Trip Planner for pricing, calling instructions and other tips specific to your phone and the country you're traveling to. To add international service, go to My International Usage and Services page in My Verizon or the My Verizon app. read more

Re: Currently with Verizon can I take my 6+ to an AT&T plan Yes, the phone will work perfectly on ATT Visit an ATT store to have your number ported and a new SIM card installed. read more

Yes you can. Verizon is required to sell LTE phones unlocked. They don’t generally advertise this (probably because it’s better for consumers than it is for them). I have activated 2 iPhone 6 devices purchased from Verizon on the ATT network simply by obtaining a SIM from ATT and placing it in the phone. read more