Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N1SMM callsign genealogy
Currently held by McGwier, Sharon M
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 N1SMM's current licensee, walking backwards.
- Davis, Sharon DALgranted 2010-09-29cancelled 2010-10-19
Successor callsigns
Callsigns held now by people who previously held N1SMM.
- MOFFAT, BRIAN DWVgranted 2020-03-31
All historical holders
Every license row we've seen with the callsign N1SMM, oldest first.
- MOFFAT, BRIAN D MD1994-07-14 → cancelled 2000-05-09
- McGwier, Sharon M AL2020-10-27 active