Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W4TRB callsign genealogy
Currently held by BREEDEN, THOMAS R
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 W4TRB's current licensee, walking backwards.
- BROWN, TIMOTHY RNCgranted 2013-02-19cancelled 2013-04-26
Successor callsigns
Callsigns held now by people who previously held W4TRB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4TRB, oldest first.
- BREEDEN, THOMAS R VA1998-12-01 → cancelled 2010-12-02
- BROWN, TIM NC2023-03-28 active