Patent ID: 7702332

Claim:
A location register installed in a system environment in which there are a plurality of mobile communication networks, each mobile communication network consisting of a plurality of location registers and at least one switching system, said location register belonging to one mobile communication network, and comprising: whole managed object managing means for storing and managing a first plurality of subscriber number information which are defined as managed objects in the system environment, and manager location register information about each location register to manage respective ones of the first plurality of subscriber number information, the first plurality of subscriber number information being stored in correspondence with the manager location register information; subscriber data managing means for storing and managing a second plurality of subscriber number information which are registered as managed objects of the location register through management by the whole managed object managing means, and subscriber data about a subscriber of a respective one of the second plurality of subscriber number information, the second plurality of subscriber number information being stored in correspondence with the subscriber data; accommodation change determining means for determining whether subscriber management information consisting of subscriber number information from the second plurality of subscriber number information and corresponding subscriber data, which is stored and managed by the subscriber data managing means, is to be deleted from the location register and transferred to one of other location registers, based on criterion information including a data volume of current subscriber management information and an accommodation capacity of the subscriber data managing means; and accommodation transfer determining means for, when the accommodation change determining means determines that the subscriber management information is to be transferred, acquiring the criterion information in said other location registers and determining a recipient location register and subscriber management information to be defined as a transferred object, based on the criterion information in each of the location register and said other location registers and based on a predetermined standard, wherein the accommodation transfer determining means determines a total number of subscriber number information from the second plurality of subscriber number information to be transferred by determining a number band to be transferred, the number band being a range of numbers within the second plurality of subscriber number information which encompasses the determined total number of subscriber number information to be transferred, the determined number band having either a lowest number of the second plurality of subscriber number information being the starting number of the number band or having the highest number of the second plurality of the subscriber number information being the ending number of the number band.