NM4B
Active2x1District 4
Competitive callsign — 13 applications filed with the FCC.
License HolderSHANNON, JOHN G
License ClassAmateur Extra
Min. Class RequiredAmateur Extra
LocationOCALA, FL
Grant DateApr 14, 2026
Expiration DateApr 14, 2036
NM4B is a highly sought-after 2x1 format amateur radio callsign. The license is currently held by SHANNON, JOHN G in OCALA, FL. This callsign has attracted significant interest in the amateur radio community, with 13 vanity applications filed with the FCC. The most recent was submitted by Torian, Keith T on Mar 30, 2026. NM4B has 8 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-. -- ....- -...
CW Weight: 23 units(Light (fast to send))
Voice Phonetics
November Mike Four Bravo
Readability: 8.5/10(High readability)
License History
- Vanity Callsign GrantedApr 14, 2026
- License IssuedApr 14, 2026
- License ExpiredMar 27, 2026
- License RenewedDec 28, 2013
- Vanity Callsign GrantedMar 26, 2004
- License IssuedMar 26, 2004
- License CanceledMar 7, 2002
- License ModifiedNov 20, 2001
Vanity Application Activity
Competing applications filed with the FCC for this callsign.