Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KG4JYI callsign genealogy
Currently held by Allen Sr, William 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 KG4JYI's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KG4JYI.
No current licensee on record previously held this callsign.