Confidence: Medium · Source: FCC ULS · As of 2026-09-11
W4MPX callsign genealogy
Currently held by Beall, JHarvey
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 W4MPX's current licensee, walking backwards.
- Roach, Michael DFLgranted 2021-08-17cancelled 2024-04-19
Successor callsigns
Callsigns held now by people who previously held W4MPX.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4MPX, oldest first.
- Beall, JHarvey GA2007-08-23 → cancelled 2019-08-21
- Roach, Michael D FL2024-04-19 active