Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KF6D callsign genealogy
Currently held by ENGELHARDT, JEFFERY A
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by KF6D's current licensee, walking backwards.
- ENGELHARDT, JEFFERY ACAgranted 1998-09-15cancelled 2006-12-22
Successor callsigns
Callsigns held now by people who previously held KF6D.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KF6D, oldest first.
- GALLMAN, OTICE CA1994-05-24 → cancelled 2006-05-25
- ENGELHARDT, JEFFERY A SC2016-11-09 active