Confidence: Medium · Source: FCC ULS · As of 2026-09-09
KY4DF
ActiveRudolph, William A
- Location
- Franklin, TN
- Class
- Amateur Extra
- Granted
- 2020-08-19
- Expires
- 2030-08-19
- Previous call
- KO4GLB
- FRN
- 0029837994
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Vanity availability
HeldCurrently held
KY4DF is held by an active license; it isn't a vanity slot right now.
Vanity availability dates are computed from FCC §97.19's hold periods: 2 years from the cancellation date for cancelled or terminated licenses, 4 years from the expiration date for expired licenses (2-year renewal grace + 2-year hold).
Callsign genealogy
Full chain →Previously held by current licensee
- Rudolph, William ATNgranted 2020-08-19cancelled 2020-12-14
License history
0 eventsNo recorded events.