Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K0SKI callsign genealogy
Currently held by Benkufski, Steven 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 K0SKI's current licensee, walking backwards.
- Benkufski, Steven JCOgranted 2008-03-04cancelled 2010-12-21
Successor callsigns
Callsigns held now by people who previously held K0SKI.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K0SKI, oldest first.
- ASPEN AMATEUR RADIO CLUB CO1999-06-03 → cancelled 2010-11-13
- Benkufski, Steven J CO2020-10-07 active