Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KI4ZNW callsign genealogy
Currently held by Topping Sr, Christopher L
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 KI4ZNW's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KI4ZNW.
- Topping Sr, Christopher LKYgranted 2017-08-02