Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W7TRG callsign genealogy
Currently held by Prowitz, David
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 W7TRG's current licensee, walking backwards.
- Prowitz, DavidWIgranted 2018-04-30cancelled 2019-02-01
Successor callsigns
Callsigns held now by people who previously held W7TRG.
No current licensee on record previously held this callsign.