Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KG9FJ callsign genealogy
Currently held by MARTIN JR, JOHN R
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 KG9FJ's current licensee, walking backwards.
- N0URRno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held KG9FJ.
- MARTIN JR, JOHN RILgranted 2023-05-16