Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4GSQ callsign genealogy
Currently held by SAWYER, WILLIAM L
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 K4GSQ's current licensee, walking backwards.
- Brown, Gary RGAgranted 1999-02-25cancelled 2004-02-24
Successor callsigns
Callsigns held now by people who previously held K4GSQ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4GSQ, oldest first.
- SAWYER, WILLIAM L FL1988-07-05 → cancelled 2000-07-06
- Brown, Gary R GA2023-12-16 active