Verizon CDMA Shutdown, does it apply to data only devices

With the coming shutdown of CDMA (3G) we’re getting conflicting information. I understand voice service will be shut down on December 31, 2020 but what about data only devices such as the LS300? It’s important I get a clear answer to this question as we have a dozen of LS300 modems still in use for remote IoT applications.