Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KJ6MAU callsign genealogy
Currently held by Bakersfield Contest Club
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 KJ6MAU's current licensee, walking backwards.
- Bustos, MauricioCAgranted 2023-03-03cancelled 2023-03-31
Successor callsigns
Callsigns held now by people who previously held KJ6MAU.
- W6BCCexpiredBakersfield Contest ClubCAgranted 2011-02-05cancelled 2023-02-07
All historical holders
Every license row we've seen with the callsign KJ6MAU, oldest first.
- Bakersfield Contest Club CA2011-01-03 → cancelled 2011-02-05
- Bustos, Mauricio CA2023-03-31 active