Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB6UOZ callsign genealogy
Currently held by JOHNSON, DOUGLAS C
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 KB6UOZ's current licensee, walking backwards.
- Johnson, Douglas CCAgranted 2017-09-02cancelled 2018-03-20
Successor callsigns
Callsigns held now by people who previously held KB6UOZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KB6UOZ, oldest first.
- JOHNSON, DOUGLAS C CA1991-04-02 → cancelled 2003-04-03
- Johnson, Douglas C CA2018-03-20 active