Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KZ4SZ callsign genealogy
Currently held by Standish, Frank 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 KZ4SZ's current licensee, walking backwards.
- Standish, Frank CFLgranted 2024-09-28cancelled 2025-05-13
Successor callsigns
Callsigns held now by people who previously held KZ4SZ.
- Standish, Frank CFLgranted 2026-07-21