Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K0JAC callsign genealogy
Currently held by EDMONDS, JACK L
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 K0JAC's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held K0JAC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K0JAC, oldest first.
- EDMONDS, JACK L IA2010-05-25 → cancelled 2022-08-05
- Roberts, James T MO2022-12-16 active