Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KK6SD callsign genealogy
Currently held by Schilke, David J
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 KK6SD's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KK6SD.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KK6SD, oldest first.
- MC KEE, JAMES R AZ2000-09-13 → cancelled 2012-11-07
- Schilke, David J CA2026-01-06 active