Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K3SQY callsign genealogy
Currently held by Vallefuoco, Fabrizio
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 K3SQY's current licensee, walking backwards.
- Vallefuoco Mr, FabrizioFLgranted 2011-09-19cancelled 2011-10-08
Successor callsigns
Callsigns held now by people who previously held K3SQY.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K3SQY, oldest first.
- BROWN, HAROLD E PA1995-01-30 → cancelled 2007-01-31
- Vallefuoco, Fabrizio FL2023-04-21 active