Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WS4JDR callsign genealogy
Currently held by Rau, Stephen 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 WS4JDR's current licensee, walking backwards.
- Rau, Stephen JSCgranted 2024-07-09cancelled 2026-06-13
Successor callsigns
Callsigns held now by people who previously held WS4JDR.
No current licensee on record previously held this callsign.