Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W9DOY callsign genealogy
Currently held by Hirano, Shoichi
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 W9DOY's current licensee, walking backwards.
- Hirano, ShoichiCAgranted 2004-08-02cancelled 2004-08-21
Successor callsigns
Callsigns held now by people who previously held W9DOY.
- Hirano, ShoichiFLgranted 2024-08-06