Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WB4ZX callsign genealogy
Currently held by Brown, Roger B
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 WB4ZX's current licensee, walking backwards.
- Brown, Roger BOKgranted 2024-02-13cancelled 2024-08-30
Successor callsigns
Callsigns held now by people who previously held WB4ZX.
No current licensee on record previously held this callsign.