A phone purchased from Verizon is locked for 60 days after its purchase date. After that period, the lock is removed and you are able to insert a new SIM card and change your wireless carrier.

You can still transfer your old number with a few simple steps if you have a compatible Android-based Verizon phone.

Carrier phones are almost always locked exclusively to that provider. In other words, you can’t buy a phone through Verizon and then immediately take it to AT&T. You can remove this lock ...