Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC0GSK callsign genealogy
Currently held by PREBE, WILLIAM F
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 KC0GSK's current licensee, walking backwards.
- Kunkel, Gregory SMOgranted 2014-08-06cancelled 2016-04-22
Successor callsigns
Callsigns held now by people who previously held KC0GSK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KC0GSK, oldest first.
- PREBE, WILLIAM F MO1998-09-30 → cancelled 2010-10-01
- Kunkel, Gregory S MO2016-04-22 active