Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KZ4FW callsign genealogy
Currently held by Knowlton, Avery T
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 KZ4FW's current licensee, walking backwards.
- Knowlton, Avery TTNgranted 2024-03-23cancelled 2024-04-09
Successor callsigns
Callsigns held now by people who previously held KZ4FW.
No current licensee on record previously held this callsign.