Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K0GWL callsign genealogy
Currently held by POTZMANN, JOHN 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 K0GWL's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held K0GWL.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K0GWL, oldest first.
- POTZMANN, JOHN L MO1997-03-05 → cancelled 2009-03-06
- LIMING, GREGG W CO2025-02-25 active