Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KR4GGJ callsign genealogy
Currently held by Leone, Robert 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 KR4GGJ's current licensee, walking backwards.
- Leone, Robert JFLgranted 2023-11-28cancelled 2025-08-19
Successor callsigns
Callsigns held now by people who previously held KR4GGJ.
No current licensee on record previously held this callsign.