Call signs in the United States - Wikipedia
https://en.wikipedia.org/wiki/Call_signs_in_the_United_States
Call signs in the United States are identifiers assigned to radio and television stations, which are issued by the Federal Communications Commission (FCC) and, in the case of most government stations, the National Telecommunications and Information Administration (NTIA). They consist of from 3 to 9 letters and digits, with their composition determined by a sta… See more
DA: 58 PA: 93 MOZ Rank: 99