Competitive callsign — 55 applications filed with the FCC.
License HolderWILLIAMSON JR, O GORDON
License ClassAmateur Extra
Min. Class RequiredAmateur Extra
LocationEustis, FL
Grant DateAug 22, 2023
Expiration DateAug 22, 2033
K4FL is a highly sought-after 1x2 format amateur radio callsign. The license is currently held by WILLIAMSON JR, O GORDON in Eustis, FL. This callsign has attracted significant interest in the amateur radio community, with 55 vanity applications filed with the FCC. The most recent was submitted by Simons, David K on Nov 21, 2025. K4FL has 25 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- ....- ..-. .-..
CW Weight: 26 units(Light (fast to send))
Voice Phonetics
Kilo Four Foxtrot Lima
Readability: 8.5/10(High readability)
License History
Vanity Callsign GrantedAug 22, 2023
License IssuedAug 22, 2023
License CanceledJul 14, 2023
License IssuedSep 4, 2021
Vanity Callsign GrantedSep 4, 2021
License CanceledAug 6, 2021
Vanity Callsign GrantedSep 5, 2018
License IssuedSep 5, 2018
License CanceledMay 18, 2018
License IssuedJan 26, 2018
Vanity Callsign GrantedJan 26, 2018
License Canceled
Vanity Application Activity
Competing applications filed with the FCC for this callsign.