Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K0PJC callsign genealogy
Currently held by Risley, Kenneth 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 K0PJC's current licensee, walking backwards.
- Risley, Kenneth WMOgranted 2011-08-17cancelled 2016-04-12
Successor callsigns
Callsigns held now by people who previously held K0PJC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K0PJC, oldest first.
- GUMM, EMMETT G MO1996-09-06 → cancelled 2008-09-09
- Risley, Kenneth W MO2016-04-12 active