K4FE
Active1x2District 4
Competitive callsign — 19 applications filed with the FCC.
License HolderKnisley, David J
License ClassAmateur Extra
Min. Class RequiredAmateur Extra
LocationWest Palm Beach, FL
Grant DateApr 17, 2026
Expiration DateApr 17, 2036
K4FE is a highly sought-after 1x2 format amateur radio callsign. The license is currently held by Knisley, David J in West Palm Beach, FL. This callsign has attracted significant interest in the amateur radio community, with 19 vanity applications filed with the FCC. The most recent was submitted by SUTLIFF, GREGORY on Apr 14, 2026. K4FE has 4 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- ....- ..-. .
CW Weight: 21 units(Light (fast to send))
Voice Phonetics
Kilo Four Foxtrot Echo
Readability: 8.5/10(High readability)
License History
- License IssuedApr 17, 2026
- Vanity Callsign GrantedApr 17, 2026
- License ExpiredMar 31, 2026
- License RenewedJan 10, 2014
Vanity Application Activity
Competing applications filed with the FCC for this callsign.