Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC9ALZ callsign genealogy
Currently held by McHenry County RACES Association
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 KC9ALZ's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KC9ALZ.
- K9ESVactiveMcHenry County RACES AssociationILgranted 2022-04-11