Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K7THW callsign genealogy
Currently held by WILLIAMS, THOMAS H
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 K7THW's current licensee, walking backwards.
- WILLIAMS, THOMAS HUTgranted 2022-03-17cancelled 2022-04-05
Successor callsigns
Callsigns held now by people who previously held K7THW.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K7THW, oldest first.
- PORTER SR, ROBERT F WA2003-03-06 → cancelled 2015-06-02
- WILLIAMS, THOMAS H UT2022-04-05 active