Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4UL callsign genealogy
Currently held by ORourke, Brian 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 K4UL's current licensee, walking backwards.
- Briggs, Jonathan RCOgranted 2017-10-11
- Briggs, Jonathan RPAgranted 2006-01-10cancelled 2007-06-08
- Baird, James ROHgranted 2018-07-03
- Baird, James ROHgranted 2006-06-03cancelled 2008-09-27
- Baird, James ROHgranted 2006-05-05cancelled 2006-06-03
Successor callsigns
Callsigns held now by people who previously held K4UL.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4UL, oldest first.
- PHELPS, WILLIAM R NC1995-02-09 → cancelled 2002-03-24
- ORourke, Brian C VA2024-06-18 active