Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KO6OJ callsign genealogy
Currently held by Mapes, Shaun G
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 KO6OJ's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KO6OJ.
No current licensee on record previously held this callsign.