K4RSK
Available1x3District 4
Competitive callsign — 4 applications filed with the FCC.
License HolderKlan II, Richard S
License ClassTechnician
Min. Class RequiredGeneral
LocationBoynton Beach, FL
Grant DateMar 7, 2002
Expiration DateMar 7, 2012
Cancellation DateMar 8, 2014
Available for ApplicationsMar 8, 2014
K4RSK is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Klan II, Richard S in Boynton Beach, FL. This callsign has attracted significant interest in the amateur radio community, with 4 vanity applications filed with the FCC. The most recent was submitted by Sanders, Robert L on Apr 2, 2026. K4RSK has 3 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- ....- .-. ... -.-
CW Weight: 29 units(Light (fast to send))
Voice Phonetics
Kilo Four Romeo Sierra Kilo
Readability: 7/10(Good readability)
This callsign is available now
Requires General license or higher to apply for this callsign format (1x3).
License History
- License ExpiredMar 8, 2014
- Vanity Callsign GrantedMar 7, 2002
- License IssuedMar 7, 2002
Vanity Application Activity
Competing applications filed with the FCC for this callsign.