Confidence: Medium · Source: FCC ULS · As of 2026-09-14
WO1Q callsign genealogy
Currently held by Tomida, Shinji
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 WO1Q's current licensee, walking backwards.
- Tomida, ShinjiFLgranted 2021-04-20cancelled 2021-05-14
Successor callsigns
Callsigns held now by people who previously held WO1Q.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WO1Q, oldest first.
- EUERLE, WILLIAM C MA2010-12-08 → cancelled 2019-02-12
- Tomida, Shinji FL2021-05-14 active