Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K5GX callsign genealogy
Currently held by D ORIO JR, RALPH 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 K5GX's current licensee, walking backwards.
- FLATTERY, WILLIAM RLAgranted 1996-05-22cancelled 2000-06-06
Successor callsigns
Callsigns held now by people who previously held K5GX.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K5GX, oldest first.
- D ORIO JR, RALPH J FL1988-05-17 → cancelled 2000-05-18
- FLATTERY, WILLIAM R LA2020-06-15 active