Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N7MSC callsign genealogy
Currently held by Curtis, 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 N7MSC's current licensee, walking backwards.
- Curtis, Michael SORgranted 2013-09-13cancelled 2014-02-15
Successor callsigns
Callsigns held now by people who previously held N7MSC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N7MSC, oldest first.
- OPATRNY TYSON, CAROL C WA1993-01-12 → cancelled 2005-01-13
- Curtis, Michael S OR2014-02-15 → cancelled 2026-03-07