Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N6SGN callsign genealogy
Currently held by Huynh, Thanh H
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 N6SGN's current licensee, walking backwards.
- Huynh, Thanh HCOgranted 2019-06-18cancelled 2019-12-10
Successor callsigns
Callsigns held now by people who previously held N6SGN.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N6SGN, oldest first.
- BARNHILL, JOHN L CA1998-08-21 → cancelled 2010-08-24
- Huynh, Thanh H CO2019-12-10 active