KA4OSF
Unknown2x3Zone 5
License HolderMackus, John
License ClassGeneral
Min. Class RequiredTechnician
Requires Technician license or higher to apply for this callsign format (2x3).
License History
- License RenewedJan 3, 2019
- Administrative Update AppliedMar 20, 2018
- Administrative Update AppliedDec 22, 2012
- License RenewedJan 13, 2009
- FRN Association Email SentDec 17, 2008
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.