Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K0SKM callsign genealogy
Currently held by Mabe, Steven K
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 K0SKM's current licensee, walking backwards.
- Mabe, Steven KCOgranted 2013-11-06cancelled 2014-06-24
Successor callsigns
Callsigns held now by people who previously held K0SKM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K0SKM, oldest first.
- RIEDEL, JACK F KY1988-09-06 → cancelled 2000-09-07
- Mabe, Steven K CO2014-06-24 → cancelled 2026-06-25