Confidence: Medium · Source: FCC ULS · As of 2026-09-14
WB9YWX callsign genealogy
Currently held by WONDERLING, ROBERT D
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 WB9YWX's current licensee, walking backwards.
- WONDERLING, ROBERT DILgranted 2021-01-19cancelled 2021-02-17
Successor callsigns
Callsigns held now by people who previously held WB9YWX.
All historical holders
Every license row we've seen with the callsign WB9YWX, oldest first.
- WONDERLING, ROBERT D IL2017-04-04 → cancelled 2021-01-19
- WONDERLING, ROBERT D IL2021-02-17 → cancelled 2024-02-03