The present invention provides a communication control system which can prevent unnecessary communication connections while ensuring user-friendliness when 1 to N communication is performed.The communication control system judges whether an area code of a mobile terminal and area codes of the other mobile terminals of the group match, and establishes 1 to N communication between the mobile terminal and the mobile terminals of which area codes match. As a result, when the users are contacted to meet, for example, the communication control system can prevent unnecessary communication connections without indiscriminately connecting the mobile terminals of users at distant locations for whom it is difficult to travel for a meeting. In addition, the communication destination mobile terminals are automatically selected based on the area code, user-friendliness can therefore be sufficiently ensured.