Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4GDJ callsign genealogy
Currently held by MARTINEZ, RIZAL 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 K4GDJ's current licensee, walking backwards.
- Martinez, Rizal LFLgranted 2018-11-16cancelled 2020-10-09
Successor callsigns
Callsigns held now by people who previously held K4GDJ.
No current licensee on record previously held this callsign.