Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K8KPM callsign genealogy
Currently held by SIKORA, JOHN
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 K8KPM's current licensee, walking backwards.
- Mickna, Karl GMIgranted 2023-05-09cancelled 2023-10-07
Successor callsigns
Callsigns held now by people who previously held K8KPM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K8KPM, oldest first.
- SIKORA, JOHN MI2008-02-04 → cancelled 2020-04-04
- Mickna, Karl G MI2023-10-07 active