Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KG0JP callsign genealogy
Currently held by Trautman Mr, Gary D
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 KG0JP's current licensee, walking backwards.
- Trautman, Gary DMOgranted 2019-03-13cancelled 2019-04-23
Successor callsigns
Callsigns held now by people who previously held KG0JP.
- JACOBSEN, JOHN AMNgranted 2020-04-07
All historical holders
Every license row we've seen with the callsign KG0JP, oldest first.
- JACOBSEN, JOHN A MN1993-10-26 → cancelled 2000-06-20
- Trautman Mr, Gary D MO2019-04-23 active