A communication device, which can simplify various setting processes, transmits, to a server via a network, external device information received from an external device by using proximity wireless communication. The communication device includes: an antenna for the proximity wireless communication with the external device; a proximity wireless communication unit communicating with the external device via the antenna to receive the external device information from the external device; an external device storage unit storing the external device information received by the proximity wireless communication unit; a registration information generation unit generating registration information to be registered in a database in the server based on (a) the external device information stored in the external device storage unit and (b) communication device information including communication device identification information for identifying the communication device; and a server communication unit transmitting registration information to the server via the network.