Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W3USP callsign genealogy
Currently held by ZANIN, BRUNO P
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 W3USP's current licensee, walking backwards.
- Fromm, Peter APAgranted 2018-05-09cancelled 2018-05-30
Successor callsigns
Callsigns held now by people who previously held W3USP.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W3USP, oldest first.
- ZANIN, BRUNO P MD1998-07-22 → cancelled 2010-07-23
- Fromm, Peter A PA2018-05-30 active