Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K0JXX callsign genealogy
Currently held by CAIN, IDA M
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 K0JXX's current licensee, walking backwards.
- Folkestad, JustinCOgranted 2021-03-29cancelled 2021-05-11
Successor callsigns
Callsigns held now by people who previously held K0JXX.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K0JXX, oldest first.
- CAIN, IDA M MN1994-05-31 → cancelled 2006-06-01
- Folkestad, Justin CO2021-05-11 active