Facility ID
The facility ID number, also called a FIN or facility identifier, is a unique integer number of one to six digits, assigned by the U.S. Federal Communications Commission (FCC) Media Bureau to each broadcast station in the FCC Consolidated Database System (CDBS) and Licensing and Management System (LMS) databases, among others. Because CDBS includes information about foreign stations which are notified to the U.S. under the terms of international frequency coordination agreements, FINs are also assigned to affected foreign stations.