The Federal Communications Commission provides an online database that lists ham operator call signs. The government database categorizes operator call signs by state, service type and frequency range to enable users to search easily.
Ways to find a ham operator call sign using the Federal Communications Commission database include searching by application file number, facility ID number, antenna structure registration number and docket number. You can also search for stations within a certain radius of specific latitude and longitude coordinates. Once search parameters have been narrowed down, lists are available for download. The extensive government database is updated daily to ensure visitors can find all station information.