Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4RBS callsign genealogy
Currently held by Shrader, Richard 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 W4RBS's current licensee, walking backwards.
- SHRADER, RICHARD BALgranted 1993-03-02cancelled 2002-03-07
Successor callsigns
Callsigns held now by people who previously held W4RBS.
No current licensee on record previously held this callsign.