N4SFM
Available1x3District 4
Competitive callsign — 3 applications filed with the FCC.
License HolderTHOMPSON, CHRISTOPHER W
License ClassP
Min. Class RequiredGeneral
LocationGreensboro, NC
Grant DateJan 25, 1999
Expiration DateJan 25, 2009
Cancellation DateJan 26, 2011
Available for ApplicationsJan 26, 2011
N4SFM is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by THOMPSON, CHRISTOPHER W in Greensboro, NC. This callsign has attracted significant interest in the amateur radio community, with 3 vanity applications filed with the FCC. The most recent was submitted by Alachua County Public Safety Professionals Amateur Radio Club on Jun 9, 2026. N4SFM has 1 recorded FCC license history event.
CW & Voice Analysis
Morse Code
-. ....- ... ..-. --
CW Weight: 26 units(Light (fast to send))
Voice Phonetics
November Four Sierra Foxtrot Mike
Readability: 7.5/10(High readability)
This callsign is available now
Requires General license or higher to apply for this callsign format (1x3).
License History
- License ExpiredJan 26, 2011
Vanity Application Activity
Competing applications filed with the FCC for this callsign.