Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WB3DFX callsign genealogy
Currently held by AULTMON, CLEVELAND J
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 WB3DFX's current licensee, walking backwards.
- Brookman, Adam JVAgranted 2024-11-14cancelled 2024-12-10
Successor callsigns
Callsigns held now by people who previously held WB3DFX.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WB3DFX, oldest first.
- AULTMON, CLEVELAND J MD2008-06-04 → cancelled 2020-08-14
- Brookman, Adam J VA2024-12-10 active