Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC8THC callsign genealogy
Currently held by Clay, Timothy H
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 KC8THC's current licensee, walking backwards.
- Clay, Timothy HMIgranted 2018-05-23cancelled 2018-06-26
Successor callsigns
Callsigns held now by people who previously held KC8THC.
- Holmgren, James MMIgranted 2006-07-25cancelled 2018-07-26
All historical holders
Every license row we've seen with the callsign KC8THC, oldest first.
- Holmgren, James M MI2002-03-14 → cancelled 2006-07-25
- Clay, Timothy H MI2018-06-26 active