Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WU7Z callsign genealogy
Currently held by BREINHOLT, MICHAEL D
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 WU7Z's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held WU7Z.
No current licensee on record previously held this callsign.