Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB7ZWZ callsign genealogy
Currently held by STOFFOLANO, MATTHEW 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 KB7ZWZ's current licensee, walking backwards.
- Stoffolano, Matthew JAZgranted 2011-10-28cancelled 2011-11-18
Successor callsigns
Callsigns held now by people who previously held KB7ZWZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KB7ZWZ, oldest first.
- STOFFOLANO, MATTHEW J WA1993-12-21 → cancelled 2005-12-22
- Stoffolano, Matthew J AZ2021-11-13 active