A portable telephone equipped with a communication section used for communication inside and outside a country that includes an acquisition section configured to acquire information on a communications company that can be connected at the time of connection to a base station, a judgment section judges whether or not the acquired information on the communications company indicates a communications company for which flat-rate data communication is accessible, and a connection control section performs connection by the communication section to the communications company indicated by the acquired information on the communications company and sets that flat-rate data communication is accessible when judged YES by the judgment section, and conversely performs connection by the communication section to the communications company indicated by the acquired communications company information and sets that flat-rate data communication is not accessible when judged NO by judgment section.