Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W9BUS callsign genealogy
Currently held by THOMPSON, WILLIAM
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 W9BUS's current licensee, walking backwards.
- Beache, Curtis JMOgranted 2022-10-05cancelled 2023-09-06
Successor callsigns
Callsigns held now by people who previously held W9BUS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W9BUS, oldest first.
- THOMPSON, WILLIAM IL2006-01-24 → cancelled 2018-04-17
- Beache, Curtis J MO2023-09-06 active