Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC7MMI callsign genealogy
Currently held by RUSSELL, BENJAMIN R
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 KC7MMI's current licensee, walking backwards.
- RUSSELL, BENJAMIN RAZgranted 2004-10-19cancelled 2007-12-21
Successor callsigns
Callsigns held now by people who previously held KC7MMI.
- RUSSELL, BENJAMIN RAZgranted 2004-10-19cancelled 2007-12-21
All historical holders
Every license row we've seen with the callsign KC7MMI, oldest first.
- RUSSELL, BENJAMIN R AZ1996-01-22 → cancelled 2004-10-19
- RUSSELL, BENJAMIN R AZ2017-12-12 active