Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4DIY callsign genealogy
Currently held by Carbone, Leo M
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 K4DIY's current licensee, walking backwards.
- Carbone, Leo MVAgranted 2020-05-11cancelled 2020-06-01
Successor callsigns
Callsigns held now by people who previously held K4DIY.
No current licensee on record previously held this callsign.