location register

The Visitor Location Register (VLR) contains selected administrative information from the HLR, necessary for call control and provision of the subscribed services, for each mobile currently located in the geographical area controlled by the VLR. Although each functional entity can be...

The HLR is a database used for storage and management of subscriptions. The home location register stores permanent data of the subscribers; including subscriber’s service profile, location information, and activity status. HLR tracks and manages individual subscriber information that is...