Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W7KAZ callsign genealogy
Currently held by Koszalka, Michael E
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 W7KAZ's current licensee, walking backwards.
- Koszalka, Michael EWAgranted 2009-02-13cancelled 2010-03-20
Successor callsigns
Callsigns held now by people who previously held W7KAZ.
No current licensee on record previously held this callsign.