Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KO6OCT callsign genealogy
Currently held by Chavarria, Mario
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 KO6OCT's current licensee, walking backwards.
- Chavarria, MarioCAgranted 2020-05-08cancelled 2020-05-29
Successor callsigns
Callsigns held now by people who previously held KO6OCT.
- Chavarria, MarioCAgranted 2020-11-13