Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KZ4SK callsign genealogy
Currently held by Dunning, Preston R
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 KZ4SK's current licensee, walking backwards.
- Dunning, Preston RFLgranted 2025-04-08cancelled 2025-04-18
Successor callsigns
Callsigns held now by people who previously held KZ4SK.
No current licensee on record previously held this callsign.