Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KZ4WF callsign genealogy
Currently held by Sarrico, Christopher D
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 KZ4WF's current licensee, walking backwards.
- Sarrico, Christopher DFLgranted 2025-07-15cancelled 2025-09-02
Successor callsigns
Callsigns held now by people who previously held KZ4WF.
- Sarrico, Christopher DFLgranted 2025-09-20