Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KO6CSX callsign genealogy
Currently held by Espineli, Christopher 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 KO6CSX's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KO6CSX.
No current licensee on record previously held this callsign.