Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KG4AGX callsign genealogy
Currently held by MARQUEZ JR, ERNESTO 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 KG4AGX's current licensee, walking backwards.
- WP4IXJcancelledcancelled 1998-09-30
Successor callsigns
Callsigns held now by people who previously held KG4AGX.
- MARQUEZ JR, ERNESTO JNCgranted 2018-12-10