KJ4ZEF
Active2x3Zone 4
License HolderUMBERGER JR, CHARLES K
License ClassGeneral
Min. Class RequiredTechnician
Grant DateSep 21, 2020
Expiration DateNov 15, 2030
License History
- License RenewedSep 21, 2020
- License ModifiedJan 18, 2011
- System-Generated GrantNov 15, 2010
- License IssuedNov 15, 2010
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.