KM4SF
Active2x2District 4
Competitive callsign — 2 applications filed with the FCC.
License HolderWILSON, AARON D
License ClassNovice
Min. Class RequiredGeneral
LocationBEAVERTON, OR
Grant DateApr 7, 2023
Expiration DateApr 7, 2033
KM4SF is a highly sought-after 2x2 format amateur radio callsign. The license is currently held by WILSON, AARON D in BEAVERTON, OR. This callsign has attracted significant interest in the amateur radio community, with 2 vanity applications filed with the FCC. The most recent was submitted by FISHER, SENECA B on Apr 8, 2026. KM4SF has 3 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- -- ....- ... ..-.
CW Weight: 29 units(Light (fast to send))
Voice Phonetics
Kilo Mike Four Sierra Foxtrot
Readability: 8/10(High readability)
License History
- License IssuedApr 7, 2023
- Vanity Callsign GrantedApr 7, 2023
- License ExpiredMay 17, 2001
Vanity Application Activity
Competing applications filed with the FCC for this callsign.