Question: are at&t and verizon iphones compatible?
Answer: Verizon runs on CDMA technology and is not compatible with GSM technology (T-Mobile & AT&T). ... No matter GSM or CDMA, Sprint, AT&T or T-Mobile, the iPhone model 5c, 5s, 6, 6+, 6s, 6s+, SE will work on any carrier. Just make sure the devices have been paid in full and properly unlocked.