Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4MBG callsign genealogy
Currently held by Gerard, Michael 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 K4MBG's current licensee, walking backwards.
- Gerard, Michael BMSgranted 2012-01-10cancelled 2012-08-17
Successor callsigns
Callsigns held now by people who previously held K4MBG.
- Gerard, Michael BMSgranted 2012-01-10cancelled 2012-08-17
All historical holders
Every license row we've seen with the callsign K4MBG, oldest first.
- Gerard, Michael B MS2002-03-20 → cancelled 2012-01-10
- Gerard, Michael B TX2024-03-13 active