Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K7ZMZ callsign genealogy
Currently held by Hayden, Susan
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 K7ZMZ's current licensee, walking backwards.
- Hayden, SusanORgranted 2017-11-07cancelled 2017-12-08
Successor callsigns
Callsigns held now by people who previously held K7ZMZ.
- SAWDERS, VICKI DNMgranted 2013-05-18cancelled 2025-07-19
All historical holders
Every license row we've seen with the callsign K7ZMZ, oldest first.
- SAWDERS, VICKI D OR1998-01-14 → cancelled 2003-07-18
- Hayden, Susan OR2017-12-08 active