A computing device may include a memory configured to store instructions and a processor configured to execute the instructions to receive a request to generate a device group for a group of user equipment (UE) devices from an application server and identify a group of Home Subscriber Server (HSS) devices that store subscriber profiles for the group of UE devices. The processor may be further configured to send a request to a provisioning system to generate HSS subgroups in the group of HSS devices, with different HSS subgroups associated with different HSS devices and each HSS subgroup including at least one of the UE devices; receive, from the provisioning system, an indication that the HSS subgroups were generated; generate a mapping from the device group to the HSS subgroups; and process messages received from the application server for the device group based on the generated mapping.