The short answer is that it depends on the phone and the carrier. Many newer GSM phones will work on Verizon, but not all.
Many older phones won’t work, and some may only work with certain carriers. If you’re not sure whether your phone will work, you can check with your carrier.
The long answer is that it depends on the phone and the carrier.
If you have a newer GSM phone, it’s likely that it will work on Verizon. Verizon has been using GSM technology for a long time, and most of their phones use GSM. If you have an older phone, it’s possible that it won’t work.
Verizon has been using CDMA technology for a long time, and many of their phones use CDMA. If you have an older phone, it’s possible that it will work, but you may have to use a different SIM card.
If you have a phone that uses CDMA, it’s likely that it won’t work on Verizon.
If you have an older phone, it’s possible that it will work, but you may have to use a different SIM card.
The bottom line is that it depends on the phone and the carrier.