Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KR6DX callsign genealogy
Currently held by TRIMMER, MIKE W
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 KR6DX's current licensee, walking backwards.
- TRIMMER, MIKE WCAgranted 2009-03-30cancelled 2009-04-21
Successor callsigns
Callsigns held now by people who previously held KR6DX.
- GOWERN, WILLIAM WCAgranted 2007-03-30cancelled 2015-09-29
All historical holders
Every license row we've seen with the callsign KR6DX, oldest first.
- GOWERN, WILLIAM W CA1997-09-17 → cancelled 2007-03-30
- TRIMMER, MIKE W CA2019-03-29 active