The verizon website has separate coverage maps for prepaid and plan.
Linky.(That link looks messed up, but I clicked on it and it worked. RV.net site formatting is just weirded out by the URL formatting.)
Moderator's Note: Fixed the link.Click on 'Detailed coverage map for your area' and you will see options for prepaid, 4G, etc.
Depending on where you go, there may be no difference or a pretty big difference.
3/4 timing in a DIY van conversion. Backroads, mountains, boondocking, sometimes big cities for a change of pace.