KF4EFJ
Unknown2x3Zone 4
License HolderMATTHEWS, JOSHUA R
License ClassTechnician
Min. Class RequiredTechnician
Requires Technician license or higher to apply for this callsign format (2x3).
License History
- License ModifiedDec 9, 2025
- License RenewedNov 26, 2025
- Administrative Update AppliedJan 5, 2021
- License RenewedSep 16, 2015
- Administrative Update AppliedSep 10, 2013
- License ModifiedAug 19, 2013
- Administrative Update AppliedSep 5, 2012
- License RenewedSep 28, 2005
- FRN Association Email SentSep 28, 2005
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.