A mobile radio terminal stores transfer information indicating whether a base station to which the mobile radio terminal is connected is changed from a base station belonging to a second mobile communication network to a base station belonging to a first mobile communication network; and control the second communicating unit so as to search for a base station belonging to the second mobile communication network, when it is determined using the stored transfer information that the mobile radio terminal is on standby in a base station belonging to the first mobile communication network after the base station to which the mobile radio terminal is connected is changed from a base station belonging to the second mobile communication network to the base station belonging to the first mobile communication network.