A system and method is provided for reporting calls. The system first receives call transaction data from a telephone company. The system verifies the validity of the data before proceeding with processing the data. Next the data is geocoded so that the calls can be traced to a given location. The resultant call detail data is then transmitted to parties who have subscribed to the service. A report generator uses the call detail data to generate tables, graphs, and maps which are useful to the subscriber. When generating maps, the report generator uses the geocoded information to geographically locate given calls on a map.