Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K2GMZ callsign genealogy
Currently held by WILLSON JR, CHARLES C
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 K2GMZ's current licensee, walking backwards.
- ISOLDI, STEVEN KFLgranted 2017-05-09cancelled 2018-06-08
- ISOLDI, STEVEN KFLgranted 2016-11-18cancelled 2017-05-09
- ISOLDI, STEVEN KAZgranted 2016-03-18cancelled 2016-11-18
- Marshall, Evan SORgranted 2018-04-24
- Marshall, Evan SORgranted 2015-06-24cancelled 2018-04-24
Successor callsigns
Callsigns held now by people who previously held K2GMZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K2GMZ, oldest first.
- WILLSON JR, CHARLES C NY2004-11-10 → cancelled 2017-02-03
- ISOLDI, STEVEN K FL2018-06-08 active