This communication control device (30) transmits, via a mobile communication network and to a terminal device (200), authentication information (OTP) which varies according to time and which is associated with a wireless base station or a constituent element of a wireless base station. The communication control device (30) receives, via the mobile communication network and from the terminal device (200), authentication information and terminal position information indicating the position of a terminal device (200). The communication control device (30) assesses the validity of terminal position information on the basis of the authentication information and terminal position information received.