Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KZ4FC callsign genealogy
Currently held by Portch, Charles W
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 KZ4FC's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KZ4FC.
No current licensee on record previously held this callsign.