Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WK9B callsign genealogy
Currently held by Hilbert, Hans J
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 WK9B's current licensee, walking backwards.
- Hilbert, Hans JWIgranted 2019-04-09cancelled 2021-02-02
Successor callsigns
Callsigns held now by people who previously held WK9B.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WK9B, oldest first.
- FOX, CHARLES L IN2008-10-16 → cancelled 2021-01-13
- Hilbert, Hans J WI2021-02-02 active