Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W1GTW callsign genealogy
Currently held by Thiel, Gregory D
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 W1GTW's current licensee, walking backwards.
- Thiel, Gregory DCAgranted 2003-11-12cancelled 2004-02-07
Successor callsigns
Callsigns held now by people who previously held W1GTW.
No current licensee on record previously held this callsign.