Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KF6JIM callsign genealogy
Currently held by PENSE, CHARLES B
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 KF6JIM's current licensee, walking backwards.
- Motacek, E JamesCAgranted 2012-03-12cancelled 2012-04-03
Successor callsigns
Callsigns held now by people who previously held KF6JIM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KF6JIM, oldest first.
- PENSE, CHARLES B CA1997-03-05 → cancelled 2009-03-06
- Motacek, E James AZ2022-02-23 active