Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K7RU callsign genealogy
Currently held by Preston Radio Club
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 K7RU's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held K7RU.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K7RU, oldest first.
- UEBEL, REINER P M AZ2006-10-18 → cancelled 2018-11-06
- Preston Radio Club WA2018-11-24 active