Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KC1IYO callsign genealogy
Currently held by Boenisch, Kevin A
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 KC1IYO's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KC1IYO.
No current licensee on record previously held this callsign.