Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KO5HKO callsign genealogy
Currently held by Koshko, Rick
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 KO5HKO's current licensee, walking backwards.
- Koshko, RickILgranted 2007-02-21cancelled 2007-03-13
Successor callsigns
Callsigns held now by people who previously held KO5HKO.
No current licensee on record previously held this callsign.