Question: can cdma phones switch carriers?
Answer: T-Mobile and AT&T run on GSM networks. Sprint and Verizon run on CDMA technology. ... The general rule is that a CDMA phone wont work on a GSM network, and vice versa—they run on different frequencies. However, most new iPhones like the 8 and 8 Plus and some Google Nexus phones CAN run on both technologies.