Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KW4YA callsign genealogy
Currently held by Tanaka, Hiroyuki
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 KW4YA's current licensee, walking backwards.
- Tanaka, HiroyukiKYgranted 2016-08-24cancelled 2016-09-20
Successor callsigns
Callsigns held now by people who previously held KW4YA.
No current licensee on record previously held this callsign.