Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD4JSX callsign genealogy
Currently held by AUSTIN, LOUIS
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 KD4JSX's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KD4JSX.
- Austin, LouisFLgranted 2011-11-07cancelled 2024-02-06