Confidence: Medium · Source: FCC ULS · As of 2026-09-14
WU4W callsign genealogy
Currently held by Strobel, Catherine A
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 WU4W's current licensee, walking backwards.
- Strobel, Catherine ATNgranted 2020-07-02cancelled 2023-07-14
Successor callsigns
Callsigns held now by people who previously held WU4W.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WU4W, oldest first.
- Osborn Jr, Hilary H FL2011-03-23 → cancelled 2023-07-12
- Strobel, Catherine A TN2023-07-14 active