Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N9SGT callsign genealogy
Currently held by POPP, HERBERT 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 N9SGT's current licensee, walking backwards.
- Seargeant, Jeff GGAgranted 2025-03-25cancelled 2025-05-02
Successor callsigns
Callsigns held now by people who previously held N9SGT.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N9SGT, oldest first.
- POPP, HERBERT L IN2013-02-14 → cancelled 2025-02-15
- Seargeant, Jeff G GA2025-05-02 active