Unlocking device on verizon

[asuri0423]

I've had a verizon droid razr maxx for almost 2 years but recently canceled my verizon account to switch to aio wireless and get a nexus 5. I know that the droid can be used on the aio network as long as its unlocked and i'd like to keep it as a backup in case anything happens to my nexus in the future. If i call verizon will they unlock the device for me? if not how do i go about doing this?