Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W3DFX callsign genealogy
Currently held by BISHOP, VINCENT D
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 W3DFX's current licensee, walking backwards.
- Farrell, Timothy FPAgranted 2021-12-21cancelled 2022-03-12
Successor callsigns
Callsigns held now by people who previously held W3DFX.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W3DFX, oldest first.
- BISHOP, VINCENT D PA1996-06-06 → cancelled 2008-06-07
- Farrell, Timothy F PA2022-03-12 active