Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W0ABU callsign genealogy
Currently held by GUZZO, VINCENT 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 W0ABU's current licensee, walking backwards.
- GUZZO, VINCENT JKSgranted 2008-03-28cancelled 2008-05-20
Successor callsigns
Callsigns held now by people who previously held W0ABU.
No current licensee on record previously held this callsign.