Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W5MDB callsign genealogy
Currently held by BROWN, MICHAEL D
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 W5MDB's current licensee, walking backwards.
- Brown, Michael DTXgranted 2006-08-11cancelled 2006-09-08
Successor callsigns
Callsigns held now by people who previously held W5MDB.
No current licensee on record previously held this callsign.