Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WB4CDX callsign genealogy
Currently held by Chester DX Association
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 WB4CDX's current licensee, walking backwards.
- KO4UROcancelledChester DX AssociationSCgranted 2021-11-12cancelled 2021-12-03
Successor callsigns
Callsigns held now by people who previously held WB4CDX.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WB4CDX, oldest first.
- FISHER, RAYMOND C VA2006-08-28 → cancelled 2018-11-24
- Chester DX Association SC2021-12-03 active