Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KZ4AT callsign genealogy
Currently held by Kellberg, Steven L
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 KZ4AT's current licensee, walking backwards.
- Kellberg, Steven LVAgranted 2023-07-11cancelled 2023-09-11
Successor callsigns
Callsigns held now by people who previously held KZ4AT.
No current licensee on record previously held this callsign.