Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KO7KJO callsign genealogy
Currently held by OLSON, KASEY
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 KO7KJO's current licensee, walking backwards.
- OLSON, KASEYWAgranted 2024-03-26cancelled 2024-04-16
Successor callsigns
Callsigns held now by people who previously held KO7KJO.
No current licensee on record previously held this callsign.