Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W6KJ callsign genealogy
Currently held by MURDOCK, RONALD D
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 W6KJ's current licensee, walking backwards.
- KM6SJUcancelledYuba Sutter Amateur Radio ClubCAgranted 2018-04-24cancelled 2018-05-15
Successor callsigns
Callsigns held now by people who previously held W6KJ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W6KJ, oldest first.
- MURDOCK, RONALD D CA2016-05-06 → cancelled 2017-04-01
- Yuba Sutter Amateur Radio Club CA2018-05-15 active