Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4MHZ callsign genealogy
Currently held by SANDY, ROBERT
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 N4MHZ's current licensee, walking backwards.
- HAYES, JACOB WNCgranted 2024-02-13cancelled 2024-03-02
Successor callsigns
Callsigns held now by people who previously held N4MHZ.
- SANDY, ROBERTFLgranted 2023-09-29
All historical holders
Every license row we've seen with the callsign N4MHZ, oldest first.
- HAYES, JOHN T NC2011-05-16 → cancelled 2023-08-15
- SANDY, ROBERT FL2023-09-01 → cancelled 2023-09-29
- HAYES, JACOB W NC2024-03-02 active