Abstract: Systems and techniques are provided for registering similar subscriber devices in a communication network. A unique Private Identity (PRID) is generated for several user devices associated together under one user account for service through the communication network. The PRID includes a group indicator identifying the PRID's association with a group of devices subject to a common service profile, a Public Identity (PUID) string of characters that uniquely identifies the one user account, and a device identifier uniquely assigned to identify the respective device within the group under the one user account. One common PRID is generated for identifying the common service profile with respect to all of the devices of the group under the one user account. The common PRID includes the group indicator, the PUID, and a wildcard in a field of the predetermined format for a device identifier.