Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W7MMZ callsign genealogy
Currently held by DOHERTY, DAVID 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 W7MMZ's current licensee, walking backwards.
- DOHERTY, DAVID EMOgranted 2017-11-08cancelled 2017-12-16
Successor callsigns
Callsigns held now by people who previously held W7MMZ.
- Zanoni, Michael MHIgranted 2005-07-06cancelled 2007-07-10
All historical holders
Every license row we've seen with the callsign W7MMZ, oldest first.
- Zanoni, Michael M OR2002-10-18 → cancelled 2005-07-06
- DOHERTY, DAVID E MO2017-12-16 active