Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W4BMG callsign genealogy
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 W4BMG's current licensee, walking backwards.
- GARDNER, MICHAEL DTNgranted 2009-07-27cancelled 2010-04-27
Successor callsigns
Callsigns held now by people who previously held W4BMG.
- FURLOW, JOHN BTXgranted 2019-06-05
All historical holders
Every license row we've seen with the callsign W4BMG, oldest first.
- GARDNER, MICHAEL D ID2020-03-10 active
- —— → cancelled 1999-07-15