Confidence: Medium · Source: FCC ULS · As of 2026-09-09
K4RTH
ActiveHeinlein, Richard T
- Location
- Jacksonville, FL
- Class
- Technician
- Granted
- 2022-08-06
- Expires
- 2032-08-06
- Previous call
- KD9CED
- FRN
- 0023227606
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Vanity availability
HeldCurrently held
K4RTH 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
- Heinlein, Richard TFLgranted 2014-09-29cancelled 2022-08-06
License history
0 eventsNo recorded events.