Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WA4TJS callsign genealogy
Currently held by BRUCE, THOMAS Z
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 WA4TJS's current licensee, walking backwards.
- SAWICKI, TREVOR JNCgranted 2018-12-14cancelled 2019-02-20
Successor callsigns
Callsigns held now by people who previously held WA4TJS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WA4TJS, oldest first.
- BRUCE, THOMAS Z KY1998-12-21 → cancelled 2010-12-22
- SAWICKI, TREVOR J NC2019-02-20 active