Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB3ZG callsign genealogy
Currently held by MATZ, JOHN M
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 AB3ZG's current licensee, walking backwards.
- MATZ, JOHN MPAgranted 2015-10-03cancelled 2016-05-24
Successor callsigns
Callsigns held now by people who previously held AB3ZG.
No current licensee on record previously held this callsign.