Confidence: Medium · Source: FCC ULS · As of 2026-09-11
WS0Z callsign genealogy
Currently held by Kampmann Jr, David E
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 WS0Z's current licensee, walking backwards.
- Kampmann Jr, David EMOgranted 2003-09-09cancelled 2008-01-05
Successor callsigns
Callsigns held now by people who previously held WS0Z.
- BRUHNKE, RUSSELL EMNgranted 1998-12-15cancelled 2002-09-07
All historical holders
Every license row we've seen with the callsign WS0Z, oldest first.
- Kampmann Jr, David E MO2017-11-17 active
- BRUHNKE, RUSSELL E— → cancelled 1998-12-15