KN4SLY
Expired2x3District 4
Competitive callsign — 2 applications filed with the FCC.
License HolderWiaduck, Walter J
License ClassAdvanced
Min. Class RequiredTechnician
LocationHillside, IL
Grant DateAug 1, 2014
Expiration DateOct 8, 2024
Available for ApplicationsOct 9, 2026
KN4SLY is a highly sought-after 2x3 format amateur radio callsign. The license is currently held by Wiaduck, Walter J in Hillside, IL. 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 Lanell, Chris D on Sep 20, 2004. KN4SLY has 4 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- -. ....- ... .-.. -.--
CW Weight: 37 units(Moderate)
Voice Phonetics
Kilo November Four Sierra Lima Yankee
Readability: 6.5/10(Good readability)
Available Oct 9, 2026 (26 days remaining)
Requires Technician license or higher to apply for this callsign format (2x3).
License History
- License RenewedAug 1, 2014
- License ModifiedMar 21, 2007
- License IssuedOct 8, 2004
- Vanity Callsign GrantedOct 8, 2004
Vanity Application Activity
Competing applications filed with the FCC for this callsign.