Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W7MTZ callsign genealogy
Currently held by Zollinger, Mike
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 W7MTZ's current licensee, walking backwards.
- Zollinger, Michael TWAgranted 2011-09-23cancelled 2011-12-30
Successor callsigns
Callsigns held now by people who previously held W7MTZ.
No current licensee on record previously held this callsign.