KF4JJB
Available2x3District 4
Competitive callsign — 1 application filed with the FCC.
License HolderSLONE, DONALD R
License ClassTechnician
Min. Class RequiredTechnician
LocationSTEELE, KY
Grant DateFeb 8, 2006
Expiration DateMay 5, 2016
Cancellation DateMay 8, 2018
Available for ApplicationsMay 6, 2018
KF4JJB is a highly sought-after 2x3 format amateur radio callsign. The license is currently held by SLONE, DONALD R in STEELE, KY. This callsign has attracted significant interest in the amateur radio community, with 1 vanity application filed with the FCC. The most recent was submitted by Beard, Jonathan J on May 6, 2026. KF4JJB has 3 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- ..-. ....- .--- .--- -...
CW Weight: 46 units(Heavy (slower to send))
Voice Phonetics
Kilo Foxtrot Four Juliet Juliet Bravo
Readability: 6.5/10(Good readability)
This callsign is available now
Requires Technician license or higher to apply for this callsign format (2x3).
License History
- License ExpiredMay 8, 2018
- Tax ID (TIN) AddedFeb 8, 2006
- License RenewedFeb 8, 2006
Vanity Application Activity
Competing applications filed with the FCC for this callsign.
- Beard, Jonathan JFiled May 6, 2026Not awardedFCC ↗