NK9O
Active2x1District 9
Competitive callsign — 8 applications filed with the FCC.
License HolderGreusel, John F
License ClassAmateur Extra
Min. Class RequiredAmateur Extra
LocationWinfield, IL
Grant DateJul 24, 2026
Expiration DateJul 24, 2036
NK9O is a highly sought-after 2x1 format amateur radio callsign. The license is currently held by Greusel, John F in Winfield, IL. This callsign has attracted significant interest in the amateur radio community, with 8 vanity applications filed with the FCC. The most recent was submitted by Hanley, Kevin on Jul 7, 2026. NK9O has 6 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-. -.- ----. ---
CW Weight: 33 units(Moderate)
Voice Phonetics
November Kilo Nine Oscar
Readability: 8/10(High readability)
License History
- License IssuedJul 24, 2026
- Vanity Callsign GrantedJul 24, 2026
- License ExpiredMar 6, 2026
- License RenewedNov 25, 2013
- Tax ID (TIN) AddedNov 26, 2003
- License RenewedNov 26, 2003
Vanity Application Activity
Competing applications filed with the FCC for this callsign.