Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W4NZM callsign genealogy
Currently held by Wilson, Michael S
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 W4NZM's current licensee, walking backwards.
- Wilson, Michael SNCgranted 2020-02-07cancelled 2020-02-25
Successor callsigns
Callsigns held now by people who previously held W4NZM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4NZM, oldest first.
- SMOTHERS, KEITH E CA2006-04-13 → cancelled 2018-07-04
- Wilson, Michael S GA2020-02-25 active