Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W3MJZ callsign genealogy
Currently held by Zabko, 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 W3MJZ's current licensee, walking backwards.
- Zabko, Michael JMDgranted 2003-05-19cancelled 2005-03-15
Successor callsigns
Callsigns held now by people who previously held W3MJZ.
No current licensee on record previously held this callsign.