K4JRF
Unknown1x3Zone 4
License HolderFrederick, John
License ClassGeneral
Min. Class RequiredGeneral
Requires General license or higher to apply for this callsign format (1x3).
License History
- Vanity Callsign GrantedJan 6, 2024
- License IssuedJan 6, 2024
- License CanceledOct 5, 2021
- Vanity Callsign GrantedNov 24, 2018
- License IssuedNov 24, 2018
- License ExpiredOct 12, 2018
- Administrative Update AppliedJan 8, 2014
- Administrative Update AppliedJan 31, 2012
- Administrative Update AppliedFeb 9, 2008
- License ModifiedSep 21, 2007
- Vanity Callsign GrantedOct 11, 2006
- License IssuedOct 11, 2006
- License Expired
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.