Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N4MXA callsign genealogy
Currently held by COOL SR, WILLIAM H
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 N4MXA's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held N4MXA.
- COOL SR, WILLIAM HNCgranted 2017-03-15