KC4OWL
Active2x3District 4
Competitive callsign — 3 applications filed with the FCC.
License HolderRoberts, Esther L
License ClassTechnician
Min. Class RequiredTechnician
LocationKnoxville, TN
Grant DateDec 9, 2025
Expiration DateDec 9, 2035
KC4OWL is a highly sought-after 2x3 format amateur radio callsign. The license is currently held by Roberts, Esther L in Knoxville, TN. This callsign has attracted significant interest in the amateur radio community, with 3 vanity applications filed with the FCC. The most recent was submitted by Roberts, Esther L on Nov 18, 2025. KC4OWL has 4 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- -.-. ....- --- .-- .-..
CW Weight: 44 units(Heavy (slower to send))
Voice Phonetics
Kilo Charlie Four Oscar Whiskey Lima
Readability: 7.5/10(High readability)
License History
- License IssuedDec 9, 2025
- Vanity Callsign GrantedDec 9, 2025
- License ExpiredMar 7, 2012
- License RenewedJan 7, 2000
Vanity Application Activity
Competing applications filed with the FCC for this callsign.