This first communication apparatus is provided with: a first communication unit which, after establishing a link necessary for first near field communication with a communication counterpart existing within a first communication available range, performs the first near field communication with the link-established communication counterpart; and a second communication unit which performs second near field communication with a communication counterpart existing within a second communication available range that is narrower than the first communication available range. In a case where detecting that a portable storage medium with which the second near field communication is available enters the second communication available range, the first communication apparatus transmits, through the first communication unit, detection information which indicates that the portable storage medium enters the second communication available range to a link-established second communication apparatus. In a case where receiving the detection information from the first communication apparatus, the second communication apparatus limits the transmission and reception of data through the first near field communication with communication counterparts other than the first communication apparatus which has transmitted the detection information, while maintaining the establishment of each link with each of a plurality of link-established communication counterparts.