Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K0BUF callsign genealogy
Currently held by Baker, Christopher W
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 K0BUF's current licensee, walking backwards.
- Baker, Christopher WPAgranted 2023-02-02cancelled 2024-02-21
Successor callsigns
Callsigns held now by people who previously held K0BUF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K0BUF, oldest first.
- Baker, Richard C MN2018-10-09 → cancelled 2022-03-01
- Baker, Christopher W PA2024-02-21 active