Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KJ3Z callsign genealogy
Currently held by MADSEN, BRUCE 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 KJ3Z's current licensee, walking backwards.
- MADSEN, BRUCE KUTgranted 2020-12-21cancelled 2022-05-03
Successor callsigns
Callsigns held now by people who previously held KJ3Z.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KJ3Z, oldest first.
- LONG, BRUCE R PA2010-03-30 → cancelled 2022-03-31
- MADSEN, BRUCE K UT2022-05-03 active