Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KS0D callsign genealogy
Currently held by MITISEK, CLARENCE C
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 KS0D's current licensee, walking backwards.
- Kowal, Carl GMNgranted 2004-06-10cancelled 2007-06-26
Successor callsigns
Callsigns held now by people who previously held KS0D.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KS0D, oldest first.
- MITISEK, CLARENCE C CO1994-07-05 → cancelled 2006-07-06
- Kowal, Carl G WI2017-04-03 active