Confidence: Medium · Source: FCC ULS · As of 2026-09-14
WU9L callsign genealogy
Currently held by CHRISTIANSON, MILLARD C
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 WU9L's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held WU9L.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WU9L, oldest first.
- CHRISTIANSON, MILLARD C WI2010-05-12 → cancelled 2022-08-09
- Joly, Alfred J AL2022-12-30 active