Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K0PUX callsign genealogy
Currently held by Hahn, David
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 K0PUX's current licensee, walking backwards.
- Hahn, DavidMNgranted 2024-04-05cancelled 2024-05-29
Successor callsigns
Callsigns held now by people who previously held K0PUX.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K0PUX, oldest first.
- CAMPBELL, JOHN A KS2002-10-17 → cancelled 2015-01-13
- Hahn, David MN2024-05-29 active