Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N7MSS callsign genealogy
Currently held by SUMERSILLE, MICHAEL 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 N7MSS's current licensee, walking backwards.
- SUMERSILLE, MICHAEL SCAgranted 2020-12-10cancelled 2020-12-29
Successor callsigns
Callsigns held now by people who previously held N7MSS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N7MSS, oldest first.
- LAWLEY, MARK W MT1989-05-16 → cancelled 2001-05-17
- SUMERSILLE, MICHAEL S CA2020-12-29 active