Abstract: A bank account integration control system designed to operate so that the item names of a plurality of information that is included in second or new bank account information corresponding to bank accounts of a bank after a merger and a plurality of code that identifies the item names are made to correspond and stored, a plurality of information that is included in the first or old bank account information corresponding to customer bank accounts established at the first or old bank before the merger is made to correspond to each item name and stored, code that is made to correspond to the item names that are the same as the item names included in the first or old account information and stored is read out, coded account information that gives the read out code to each item name that is included in the first or old account information is created, and based on the corresponding code information and the coded account information, creates account information that corresponds the plurality of information included i

Abstract: The apparatus of the present invention is directed to an apparatus and a system for managing a card number for so-called electronic money cards and comprises an interface means for handling the signals between the head and branch offices of an issuing authority such a bank or credit card company, both domestic and overseas, a processing means for internal processing and controlling based on the signals received from by this interface means, unused card number storage means for storing card numbers not yet used for issued cards, drawn unused card number storage means for storing unused card numbers when retrieving such numbers from each head office and branch, currently used card number storage means for storing card numbers issued and currently being used, and invalid card number storage means for storing numbers of cards that have no remaining balance.