[Issues] To provide: a radio access device, a radio access system, a network selection method and a recording medium which is capable of: in an environment where a plurality of radio access networks is intermingled, evading cut off of a communication accompanied by a movement of a radio access device; and continuing the communication more stably.[Solution method] The radio access device includes: an acquisition means which acquires network information about a network to be used for communication from an administration entity which administers the information; and a selection means which obtains, based on the network information acquired; first information which indicates availability of a network at a current position of its own and second information which indicates availability of a network at a position other than the current position of its own, and selects a network to be used for communication using the first and the second information obtained.