Confidence: Medium · Source: FCC ULS · As of 2026-09-10
K4YJA
ActiveSimpson JR, William H
- Location
- Jacksonville, FL
- Class
- Technician
- Granted
- 2025-04-19
- Expires
- 2035-04-19
- Previous call
- KR4CTB
- FRN
- 0036027357
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Vanity availability
HeldCurrently held
K4YJA 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
- Simpson, William HFLgranted 2025-04-01cancelled 2025-04-19
License history
0 eventsNo recorded events.