Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AG4CZ callsign genealogy
Currently held by Penezic, John E
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 AG4CZ's current licensee, walking backwards.
- PENEZIC, JOHN EKYgranted 1998-08-06cancelled 2000-10-07
Successor callsigns
Callsigns held now by people who previously held AG4CZ.
No current licensee on record previously held this callsign.