Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WB5RWC callsign genealogy
Currently held by THOMAS, WILLIAM M
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 WB5RWC's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held WB5RWC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WB5RWC, oldest first.
- THOMAS, WILLIAM M OK1988-08-09 → cancelled 2000-08-10
- CHAPMAN, RANDOLPH W TX2018-04-20 active