Confidence: Medium · Source: FCC ULS · As of 2026-09-14
WF0GM callsign genealogy
Currently held by Morrison Contest Club
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 WF0GM's current licensee, walking backwards.
- KF0AOMcancelledMorrison Contest ClubCOgranted 2020-06-19cancelled 2020-07-10
Successor callsigns
Callsigns held now by people who previously held WF0GM.
- Marx, Gregory GMNgranted 2017-01-07cancelled 2019-02-09
All historical holders
Every license row we've seen with the callsign WF0GM, oldest first.
- Marx, Gregory G MN2016-10-04 → cancelled 2017-01-07
- Morrison Contest Club CO2020-07-10 active