A system, apparatus and method for identifying the capacity of a particular switch through which a plurality of telephone calls will be broadcast has a processor in operative communication with a communication network and an NPANXX database, and is configured to retrieve a telephone number from a call list from a call list database, then to retrieve from the NPANXX database a CLLI identification associated with the retrieved telephone number. The processor is configured to retrieve a maximum call capacity for a switch associated with the retrieved CLLI identification from a CLLI limit database. The processor is configured to store a number of current calls being made through the switch associated with the retrieved CLLI identification and to make a next telephone call when the number of current calls is less than or equal to the maximum call capacity.