Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB6O callsign genealogy
Currently held by Swanson, Burton E
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 KB6O's current licensee, walking backwards.
- Yamamura, KaoruCAgranted 2020-06-15cancelled 2020-07-07
Successor callsigns
Callsigns held now by people who previously held KB6O.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KB6O, oldest first.
- Swanson, Burton E AZ2013-12-27 → cancelled 2018-06-05
- Yamamura, Kaoru CA2020-07-07 active