Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KK6VZS callsign genealogy
Currently held by Okuma, Ryuta
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 KK6VZS's current licensee, walking backwards.
- Okuma, RyutaCAgranted 2015-07-24cancelled 2015-08-21
Successor callsigns
Callsigns held now by people who previously held KK6VZS.
- Okuma, RyutaCAgranted 2017-03-14