K4SRK
Unknown1x3Zone 4
License HolderKruk, Ronald E
License ClassAmateur Extra
Min. Class RequiredGeneral
Requires General license or higher to apply for this callsign format (1x3).
License History
- License IssuedMar 17, 2026
- Vanity Callsign GrantedMar 17, 2026
- License CanceledOct 18, 2011
- License IssuedFeb 9, 2007
- Vanity Callsign GrantedFeb 9, 2007
Vanity Application Activity
Competing applications filed with the FCC for this callsign.
No competing applications detected. Monitor the FCC ULS application search to verify before filing.