Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N7NMT callsign genealogy
Currently held by Tiemersma, Matthew D
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 N7NMT's current licensee, walking backwards.
- Tiemersma, Matthew DORgranted 2025-07-24cancelled 2025-08-15
Successor callsigns
Callsigns held now by people who previously held N7NMT.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N7NMT, oldest first.
- DANIELS, ROY V OR1999-05-21 → cancelled 2011-05-24
- Tiemersma, Matthew D OR2025-08-15 active