Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4MBD callsign genealogy
Currently held by DRUMMONDS, MATTHEW 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 K4MBD's current licensee, walking backwards.
- Drummonds, Matthew BTNgranted 2009-10-23cancelled 2009-11-13
Successor callsigns
Callsigns held now by people who previously held K4MBD.
No current licensee on record previously held this callsign.