KU4OI
Unknown2x2Zone 4
License HolderDURFIELD, MARK A
License ClassAdvanced
Min. Class RequiredGeneral
Requires General license or higher to apply for this callsign format (2x2).
License History
- License RenewedNov 21, 2017
- License RenewedJan 8, 2008
- FRN Association Email SentJan 7, 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.