Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KG6O callsign genealogy
Currently held by THOMPSON, WILLIAM 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 KG6O's current licensee, walking backwards.
- Olson, StevenCAgranted 2017-11-14cancelled 2022-06-01
Successor callsigns
Callsigns held now by people who previously held KG6O.
- Hoffman, Christopher RWAgranted 2020-05-12
All historical holders
Every license row we've seen with the callsign KG6O, oldest first.
- THOMPSON, WILLIAM B CA1994-09-09 → cancelled 2006-09-12
- Hoffman, Christopher R WA2016-10-29 → cancelled 2020-05-12
- Olson, Steven CA2022-06-01 active