Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W9DU callsign genealogy
Currently held by MINAGA, YUKI
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 W9DU's current licensee, walking backwards.
- VALENTA, SCOTT MILgranted 2021-11-23cancelled 2023-12-01
Successor callsigns
Callsigns held now by people who previously held W9DU.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W9DU, oldest first.
- MINAGA, YUKI WI2011-10-19 → cancelled 2021-11-11
- VALENTA, SCOTT M IL2023-12-01 active