Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC8UTA callsign genealogy
Currently held by Zirkle, Michael D
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 KC8UTA's current licensee, walking backwards.
- ZIRKLE, MICHAEL DOHgranted 1997-12-11cancelled 2002-09-10
Successor callsigns
Callsigns held now by people who previously held KC8UTA.
- Zirkle, Michael DOHgranted 2022-10-22