Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KN4CYC callsign genealogy
Currently held by Hirner Jr, Carl 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 KN4CYC'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 KN4CYC.
- Hirner Jr, Carl JVAgranted 2021-10-15