Deterioration of the quality of service at an application level is minimized by performing communication control only when the density of mobile objects (11) in a management network is high. A communication control device (100) is installed in each of mobile objects (11) that acquire content data (141) from a content server (14). The mobile objects (11) constitute a management network for communicating with each other. A management unit (110) determines whether communication control when acquiring the content data (141) is to be performed, based on the density of the mobile objects (141) in the management network.