Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD0ABN callsign genealogy
Currently held by Conmicro Amateur Radio Society
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 KD0ABN's current licensee, walking backwards.
- Winkler, Robert DMNgranted 2011-11-10cancelled 2016-03-29
Successor callsigns
Callsigns held now by people who previously held KD0ABN.
- W5NPactiveConmicro Amateur Radio SocietyMNgranted 2017-01-24
All historical holders
Every license row we've seen with the callsign KD0ABN, oldest first.
- Conmicro Amateur Radio Society MN2007-03-27 → cancelled 2007-04-17
- Winkler 725, Robert D MN2016-03-29 active