Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K7RMB callsign genealogy
Currently held by BENGTZEN, R MATTHEW
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 K7RMB's current licensee, walking backwards.
- BENGTZEN, R MATTHEWUTgranted 2007-04-25cancelled 2016-07-06
Successor callsigns
Callsigns held now by people who previously held K7RMB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K7RMB, oldest first.
- BRIMHALL, RICHARD M UT2003-01-24 → cancelled 2015-01-27
- BENGTZEN, R MATTHEW UT2026-05-09 active