Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KO6YOY callsign genealogy
Currently held by Otake, Yuya
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 KO6YOY's current licensee, walking backwards.
- Otake, YuyaCAgranted 2025-11-25cancelled 2025-12-16
Successor callsigns
Callsigns held now by people who previously held KO6YOY.
No current licensee on record previously held this callsign.