Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WW0J callsign genealogy
Currently held by GAUSMAN, WILLIAM 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 WW0J's current licensee, walking backwards.
- Kruljac, David SNVgranted 2018-03-12cancelled 2025-09-20
Successor callsigns
Callsigns held now by people who previously held WW0J.
- GAUSMAN, WILLIAM CMIgranted 2023-09-01
All historical holders
Every license row we've seen with the callsign WW0J, oldest first.
- GAUSMAN, WILLIAM C MI2014-02-06 → cancelled 2023-09-01
- Kruljac, David S NV2025-09-20 active