Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KC8SKI callsign genealogy
Currently held by KOSCINSKI, CHARLES
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 KC8SKI's current licensee, walking backwards.
- KOSCINSKI, CHARLESCAgranted 2017-01-23cancelled 2017-02-10
Successor callsigns
Callsigns held now by people who previously held KC8SKI.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KC8SKI, oldest first.
- KOSHT, DAVID L MI2001-10-23 → cancelled 2013-11-05
- KOSCINSKI, CHARLES CA2017-02-10 active