Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W0BRZ callsign genealogy
Currently held by Breznay, Michael 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 W0BRZ's current licensee, walking backwards.
- Breznay, Michael JCOgranted 2016-11-21cancelled 2016-12-20
Successor callsigns
Callsigns held now by people who previously held W0BRZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W0BRZ, oldest first.
- PIERCE, BURTON W MO1993-04-06 → cancelled 2005-04-07
- Breznay, Michael J MN2016-12-20 active