Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N1MSH callsign genealogy
Currently held by Hattie, Mark S
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 N1MSH's current licensee, walking backwards.
- Hattie, Mark SMIgranted 2022-01-10cancelled 2025-03-21
Successor callsigns
Callsigns held now by people who previously held N1MSH.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N1MSH, oldest first.
- HALL, WILLIAM T VT2012-03-13 → cancelled 2024-06-11
- Hattie, Mark S MI2025-03-21 active