Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N7MSL callsign genealogy
Currently held by WARREN, SHERWOOD O
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 N7MSL's current licensee, walking backwards.
- KK7HSBcancelledMake Salt Lake Amateur Radio ClubUTgranted 2022-08-09cancelled 2022-08-27
Successor callsigns
Callsigns held now by people who previously held N7MSL.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N7MSL, oldest first.
- WARREN, SHERWOOD O MT2001-02-08 → cancelled 2013-02-13
- Make Salt Lake Amateur Radio Club UT2022-08-27 active