A method of assigning a subscriber identifier to a mobile communication device using a long term evolution (LTE) network. The method comprises when no subscriber identifier is found and a source internet protocol (IP) address of the original service request is within a predefined IP address block, composing, by the server, a new URL with the original URL nested inside the new URL, wherein the additional part of the new URL from the original URL redirects the mobile communication device to an identifier network element, responding to the original service request, by the server, to a client application on the mobile communication device with the new URL, and referencing, by the identifier network element, a system of record (SoR) for a subscription profile based on a source IP address of a second service request in response to receiving the second service request from the mobile communication device.