Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K7AVZ callsign genealogy
Currently held by MUIR, GARTH
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 K7AVZ's current licensee, walking backwards.
- MUIR, GARTHUTgranted 2024-06-28cancelled 2025-03-15
Successor callsigns
Callsigns held now by people who previously held K7AVZ.
- MUIR, GARTHUTgranted 2025-05-23
All historical holders
Every license row we've seen with the callsign K7AVZ, oldest first.
- BLACKMAN, JAMES E AZ2004-08-30 → cancelled 2016-08-12
- MUIR, GARTH UT2025-03-15 → cancelled 2025-05-23