A first server device, associated with a first carrier network, may provide a first identifier of a first application device to a second server device to cause the second server device to store the first identifier. The second server device may be accessible from the first carrier network and from a different second carrier network. The first server device may receive a first message from the first application device; transmit the first message and the first identifier of the first application device towards a client device via the first carrier network and the second carrier network; receive, from a second application device associated with the second carrier network, a second message; identify the second application device based on information, maintained by the second server, associating the second application device with the second identifier; identify a set of policies based on the second identifier; and apply the set of policies.