Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC9ACS callsign genealogy
Currently held by Dorschner, Todd A
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 KC9ACS's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KC9ACS.
- Dorschner, Todd AWIgranted 2001-09-07cancelled 2003-10-15