Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KM4YOU callsign genealogy
Currently held by Bitto, Greg F
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 KM4YOU's current licensee, walking backwards.
- Bitto, Greg FFLgranted 2016-02-09cancelled 2016-02-27
Successor callsigns
Callsigns held now by people who previously held KM4YOU.
No current licensee on record previously held this callsign.