KJ4OOL
Available2x3Zone 4
License HolderHeintzelman, David L
License ClassAmateur Extra
Min. Class RequiredTechnician
Grant DateAug 6, 2019
Expiration DateAug 21, 2029
Cancellation DateSep 25, 2021
Available for ApplicationsSep 26, 2023
This callsign is available now
Requires Technician license or higher to apply for this callsign format (2x3).
License History
- License CanceledSep 25, 2021
- License ModifiedJan 15, 2020
- License RenewedAug 6, 2019
- License ModifiedApr 6, 2010
- System-Generated GrantAug 21, 2009
- License IssuedAug 21, 2009
Vanity Application Activity
Competing applications filed with the FCC for this callsign.
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