Confidence: Medium · Source: FCC ULS · As of 2026-09-09
W4JDK
ActiveKNISLEY, JOHN D
- Location
- TAMPA, FL
- Class
- Technician
- Granted
- 2026-07-17
- Expires
- 2036-09-26
- Previous call
- KI4RCD
- FRN
- 0015436470
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Vanity availability
HeldCurrently held
W4JDK 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
- KNISLEY, JOHN DFLgranted 2006-09-06cancelled 2006-09-26
License history
0 eventsNo recorded events.