Abstract: Providing for data exchange between mobility management and location management components over a signaling network to facilitate establishment of end-to-end mobile communication is disclosed herein. Components can include an access control component that receives identification information associated with a target mobile device, and a lookup component associated with the mobile device that can provide routing information via a signaling network to the access control component. Such routing information can be sufficient to locate a second access control component serving the target device to assist in establishing end-to-end communication between the target device and an originating device. By such systems and methods, the claimed subject matter can increase scalability and capacity of finite core network resources engaged in facilitating mobile communication.