Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KN4CI callsign genealogy
Currently held by FREE, REX F
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 KN4CI's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KN4CI.
No current licensee on record previously held this callsign.