Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K1MBG callsign genealogy
Currently held by Gordon, Marc B
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 K1MBG's current licensee, walking backwards.
- Gabbard, Michael BCOgranted 2020-12-29cancelled 2021-01-19
Successor callsigns
Callsigns held now by people who previously held K1MBG.
- Gordon, Marc BMAgranted 2018-12-18
All historical holders
Every license row we've seen with the callsign K1MBG, oldest first.
- Gordon, Marc B MA2017-03-03 → cancelled 2018-12-18
- Gabbard, Michael B CO2021-01-19 active