Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4GCZ callsign genealogy
Currently held by Zweig, Gregory C
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 K4GCZ's current licensee, walking backwards.
- Zweig, Gregory CTNgranted 2025-03-25cancelled 2025-06-24
Successor callsigns
Callsigns held now by people who previously held K4GCZ.
No current licensee on record previously held this callsign.