Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K7MBM callsign genealogy
Currently held by Major, Mark 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 K7MBM's current licensee, walking backwards.
- Major, Mark BMTgranted 2014-02-25cancelled 2014-11-01
Successor callsigns
Callsigns held now by people who previously held K7MBM.
No current licensee on record previously held this callsign.