K4OSU
Active1x3District 4
Competitive callsign — 6 applications filed with the FCC.
License HolderREEDY, DENNIS L
License ClassGeneral
Min. Class RequiredGeneral
LocationKNOXVILLE, TN
Grant DateMay 20, 2026
Expiration DateJul 11, 2036
K4OSU is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by REEDY, DENNIS L in KNOXVILLE, TN. This callsign has attracted significant interest in the amateur radio community, with 6 vanity applications filed with the FCC. The most recent was submitted by REEDY, DENNIS L on Jun 23, 2006. K4OSU has 5 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- ....- --- ... ..-
CW Weight: 31 units(Moderate)
Voice Phonetics
Kilo Four Oscar Sierra Uniform
Readability: 7/10(Good readability)
License History
- Administrative Update AppliedMay 21, 2026
- License RenewedMay 20, 2026
- License RenewedMay 16, 2016
- License IssuedJul 11, 2006
- Vanity Callsign GrantedJul 11, 2006
Vanity Application Activity
Competing applications filed with the FCC for this callsign.