KS4SK
Active2x2District 4
Competitive callsign — 1 application filed with the FCC.
License HolderKauffman, Simon D
License ClassAmateur Extra
Min. Class RequiredGeneral
LocationToledo, OH
Grant DateJul 31, 2020
Expiration DateJul 31, 2030
KS4SK is a highly sought-after 2x2 format amateur radio callsign. The license is currently held by Kauffman, Simon D in Toledo, OH. This callsign has attracted significant interest in the amateur radio community, with 1 vanity application filed with the FCC. The most recent was submitted by Kauffman, Simon D on Jul 13, 2020. KS4SK has 6 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- ... ....- ... -.-
CW Weight: 27 units(Light (fast to send))
Voice Phonetics
Kilo Sierra Four Sierra Kilo
Readability: 7/10(Good readability)
License History
- Administrative Update AppliedJul 7, 2026
- Administrative Update AppliedApr 7, 2023
- License IssuedJul 31, 2020
- Vanity Callsign GrantedJul 31, 2020
- License ExpiredJul 16, 2016
- Tax ID (TIN) AddedMay 12, 2004
Vanity Application Activity
Competing applications filed with the FCC for this callsign.
- Kauffman, Simon DFiled Jul 13, 2020Not awardedFCC ↗