Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K6DK callsign genealogy
Currently held by Zuill, Fred
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 K6DK's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held K6DK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K6DK, oldest first.
- ROTHENBERGER, EUGENE C CA1991-07-09 → cancelled 1998-01-27
- Couch, Stuart T CA2013-01-05 → cancelled 2025-01-07
- Zuill, Fred CA2025-01-24 active