Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W7TRW callsign genealogy
Currently held by WILLIAMS, 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 W7TRW's current licensee, walking backwards.
- Whipp, Theresa RAZgranted 2011-11-28cancelled 2011-12-17
Successor callsigns
Callsigns held now by people who previously held W7TRW.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W7TRW, oldest first.
- WILLIAMS, THOMAS R OR1999-03-04 → cancelled 2011-03-05
- Whipp, Theresa R AZ2021-10-09 active