Apparatus and method for enabling to transceive data using a plurality of heterogeneous networks selectively through a fixed host address

PURPOSE: An apparatus for transceiving data using a plurality of heterogeneous networks selectively through a fixed host address and a method thereof are provided to provide a stable communication network even if communication with some networks is disconnected or unstable, by utilizing all heterogeneous networks. CONSTITUTION: A local server(111) performs data exchange with an application performed in a mobile communication terminal through local communications sockets. An adaptive transceiving agent(112) generates at least one outgoing communications socket. The adaptive transceiving agent performs data exchange with an external address server through the generated outgoing communications sockets. The outgoing communications sockets have a connection address allocated from one of a plurality of heterogeneous networks as a source address. The outgoing communications sockets have the external address as a destination.