Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB9ZZ callsign genealogy
Currently held by Piva, William J
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 AB9ZZ's current licensee, walking backwards.
- Finco, Steven CWIgranted 2013-03-15cancelled 2016-03-01
Successor callsigns
Callsigns held now by people who previously held AB9ZZ.
- Piva, William JILgranted 2008-01-05cancelled 2013-07-31
All historical holders
Every license row we've seen with the callsign AB9ZZ, oldest first.
- Piva, William J IL2008-01-05 → cancelled 2013-07-27
- Finco, Steven C WI2026-01-27 active