Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9WNZ callsign genealogy
Currently held by JOHANSEN, LESLIE C
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 K9WNZ's current licensee, walking backwards.
- Wonser, Jeffrey JINgranted 2021-08-03cancelled 2021-08-23
Successor callsigns
Callsigns held now by people who previously held K9WNZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K9WNZ, oldest first.
- JOHANSEN, LESLIE C WI2005-01-18 → cancelled 2017-04-04
- Wonser, Jeffrey J NV2021-08-23 active