I am having this same issue with my new iphone XR. Is there a setting somewhere that can be adjusted to show the phone number of the person calling?? Thank you!
Just started having the same problem with a 6s that I've had for years. Also causing me major problems using my phone for work purposes. Get off your butts and fix this annoying problem, Verizon!
Turning off HD Voice in your Verizon app (under Account: Add-Ons: HD Voice) fixed this problem for me. New Verizon user with iPhone XR.
After having this issue drive me crazy for months (and no resolution after speaking with Verizon reps), I read this thread and removed HD Voice AND Call Filter from the MyVerizon app on my phone. Problem solved! Go to the MyVerizon app on your phone>my account>add-ons and select the app you want to remove and the line you want it removed from. Numbers are displaying again!