Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K7RAD callsign genealogy
Currently held by DUNHAM, RUSSELL A
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 K7RAD's current licensee, walking backwards.
- DUNHAM, RUSSELL AAZgranted 2005-06-25cancelled 2006-02-28
Successor callsigns
Callsigns held now by people who previously held K7RAD.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K7RAD, oldest first.
- DORSEY JR, RONALD A AZ1998-01-14 → cancelled 2000-03-10
- DUNHAM, RUSSELL A MT2016-06-23 active