This query displays whether a call sign is already in use. If it is in use, the query identifies to whom it is assigned or reserved, and provides the mailing address of record for the licensee or permittee.

Only FCC broadcast station licensees and permittees may apply for and reserve broadcast station call signs. See the Call Sign Reservation & Authorization System before applying for particular call letters.

For all translator stations, or alternatively for broadcast stations, please use the CDBS Station Search.