Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB7TRJ callsign genealogy
Currently held by HARDCASTLE, MICHAEL J
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 KB7TRJ's current licensee, walking backwards.
- KC6VEPno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held KB7TRJ.
- HARDCASTLE, MICHAEL JCOgranted 2021-10-02