Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC5YQ callsign genealogy
Currently held by Filippi, Marco
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 AC5YQ's current licensee, walking backwards.
- Filippi, MarcoARgranted 1999-10-05cancelled 2000-06-14
Successor callsigns
Callsigns held now by people who previously held AC5YQ.
- Filippi, MarcoARgranted 2026-06-23