Simple phones that work on Verizon

2G: Off. Verizon never ran a 2G GSM network, and closed its older CDMA network by 3 January 2023.
4G calling for phones they didn't sell: Approved phones only. Verizon checks each phone by IMEI before activating it and won't activate phones without 4G calling. It publishes no list.

Phone	Verdict	Why
TCL Flip 3	Works	Calls and texts should work on Verizon, including over 4G.
Kyocera DuraXV Extreme+	Works	Calls and texts should work on Verizon, including over 4G.
Sonim XP3plus 5G	Works	Calls and texts should work on Verizon, including over 4G.

We've left out 11 phones we can't confirm work on Verizon.

Sources