Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KZ4ZF callsign genealogy
Currently held by Nagle, Thomas A
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 KZ4ZF's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KZ4ZF.
- Nagle, Thomas AGAgranted 2026-02-18