Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC6TRC callsign genealogy
Currently held by Hassett, Mark K
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 KC6TRC's current licensee, walking backwards.
- Hassett, Mark KCAgranted 2005-08-02cancelled 2005-09-07
Successor callsigns
Callsigns held now by people who previously held KC6TRC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KC6TRC, oldest first.
- HASSETT, MARK K CA1991-04-09 → cancelled 2003-04-10
- Hassett, Mark K WA2015-09-18 active