Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4GNB callsign genealogy
Currently held by De Giudici, Francesco
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 K4GNB's current licensee, walking backwards.
- De Giudici, FrancescoNJgranted 2018-03-19cancelled 2019-03-29
Successor callsigns
Callsigns held now by people who previously held K4GNB.
No current licensee on record previously held this callsign.