Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N9IGS callsign genealogy
Currently held by SPEROPULOS, THOMAS J
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 N9IGS's current licensee, walking backwards.
- KB9BVBno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held N9IGS.
- SPEROPULOS, THOMAS JWIgranted 2019-08-02