Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W7GBT callsign genealogy
Currently held by Truong, Gordon B
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 W7GBT's current licensee, walking backwards.
- Truong, GordonORgranted 2021-09-21cancelled 2022-04-30
Successor callsigns
Callsigns held now by people who previously held W7GBT.
No current licensee on record previously held this callsign.