Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K6JJR callsign genealogy
Currently held by KENNEY, WILLIAM 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 K6JJR's current licensee, walking backwards.
- MARHOLIN, MARK JCAgranted 2004-06-02cancelled 2011-06-07
Successor callsigns
Callsigns held now by people who previously held K6JJR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K6JJR, oldest first.
- KENNEY, WILLIAM J CA1995-01-31 → cancelled 2007-02-01
- MARHOLIN, MARK J CA2021-04-08 active