A communication control apparatus allocates capacity of a line that connects a plurality of baseband units managed by a plurality of operators to a radio unit shared by the plurality of operators to the plurality of operators. The communication control apparatus includes a memory and a processor coupled to the memory. The processor executes a process including: calculating a fairness coefficient indicating allocation fairness of the line with respect to each of the plurality of operators; acquiring needed capacity of the line needed by each of the plurality of operators and a gain achievable when the needed capacity is allocated to each of the plurality of operators; and deciding allocation capacity of the line for each operator based on the fairness coefficient, the needed capacity, and the gain.