Confidence: Medium · Source: FCC ULS · As of 2026-09-10
KA5ABC callsign genealogy
Currently held by Steinwinder, Michael
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 KA5ABC's current licensee, walking backwards.
- Steinwinder, Michael WMSgranted 2022-04-08cancelled 2022-04-29
Successor callsigns
Callsigns held now by people who previously held KA5ABC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KA5ABC, oldest first.
- JUGE, DANA J OK2008-07-24 → cancelled 2020-08-18
- Steinwinder, Michael MS2022-04-29 active