Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4IZW callsign genealogy
Currently held by Russell, Shawn M
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 K4IZW's current licensee, walking backwards.
- Russell, Shawn MGAgranted 2018-01-22cancelled 2021-02-02
Successor callsigns
Callsigns held now by people who previously held K4IZW.
No current licensee on record previously held this callsign.