Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W4UO callsign genealogy
Currently held by Sorey, Christopher L
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 W4UO's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held W4UO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4UO, oldest first.
- HOLBROOK, ROBERT A GA2004-12-28 → cancelled 2008-03-31
- Sorey, Christopher L TN2020-02-19 active