Confidence: Medium · Source: FCC ULS · As of 2026-09-11
WD4ABZ callsign genealogy
Currently held by HUDSON, CHARLES L
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 WD4ABZ's current licensee, walking backwards.
- TAYLOR, RUSSELL JNCgranted 2015-07-29cancelled 2015-08-21
Successor callsigns
Callsigns held now by people who previously held WD4ABZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WD4ABZ, oldest first.
- HUDSON, CHARLES L NC1988-09-27 → cancelled 2000-09-28
- TAYLOR, RUSSELL J NC2025-07-15 active