At this point, it may not help you any, but anyone can check an IMEI against Verizon's Device Management Database (DMD) by using their BYOD device checker found here: https://www.verizon.com/onedp/byod#/

For something like your hotspot, click on Other Device Type.  Enter the 15-digit IMEI number.  If the IMEI is in Verizon's DMD, then you'll get a message stating your device will work on Verizon's network.