K4DUL
Unknown1x3Zone 4
License HolderHershberger, William O
License ClassAdvanced
Min. Class RequiredGeneral
Requires General license or higher to apply for this callsign format (1x3).
License History
- License ExpiredApr 1, 2020
- Tax ID (TIN) AddedFeb 4, 2008
- License RenewedFeb 4, 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.