Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NM4Z callsign genealogy
Currently held by Prescott III, Richard 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 NM4Z's current licensee, walking backwards.
- PRESCOTT III, RICHARD HALgranted 1997-02-26cancelled 2001-07-03
Successor callsigns
Callsigns held now by people who previously held NM4Z.
- BRAKE, BRADLEY TTNgranted 2019-03-05cancelled 2021-01-27
All historical holders
Every license row we've seen with the callsign NM4Z, oldest first.
- Prescott III, Richard H NC2021-08-23 active
- —— → cancelled 1999-05-05