Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K7OUS callsign genealogy
Currently held by DIGIACOMO, MICHAEL J
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 K7OUS's current licensee, walking backwards.
- DIGIACOMO, MICHAEL JIDgranted 2020-06-26cancelled 2020-11-06
Successor callsigns
Callsigns held now by people who previously held K7OUS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K7OUS, oldest first.
- CLACKAMAS AMATEUR RADIO CLUB OR2006-07-22 → cancelled 2018-06-30
- DIGIACOMO, MICHAEL J ID2020-11-06 active