Confidence: Medium · Source: FCC ULS · As of 2026-09-09
K1RJO callsign genealogy
Currently held by Orvedahl, Ryan 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 K1RJO's current licensee, walking backwards.
- Orvedahl, Ryan JMAgranted 2003-07-18cancelled 2003-09-16
Successor callsigns
Callsigns held now by people who previously held K1RJO.
No current licensee on record previously held this callsign.