Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KJ4GDJ callsign genealogy
Currently held by Collester III, Robert W
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 KJ4GDJ'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 KJ4GDJ.
- Collester III, Robert WTXgranted 2020-06-01