N4NNO
Active1x3District 4
Competitive callsign — 4 applications filed with the FCC.
License HolderNANO, MARK
License ClassTechnician
Min. Class RequiredGeneral
LocationSan Bruno, CA
Grant DateJul 18, 2025
Expiration DateJul 18, 2035
N4NNO is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by NANO, MARK in San Bruno, CA. This callsign has attracted significant interest in the amateur radio community, with 4 vanity applications filed with the FCC. The most recent was submitted by NANO, MARK on Jun 30, 2025. N4NNO has 3 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-. ....- -. -. ---
CW Weight: 28 units(Light (fast to send))
Voice Phonetics
November Four November November Oscar
Readability: 6.5/10(Good readability)
License History
- License IssuedJul 18, 2025
- Vanity Callsign GrantedJul 18, 2025
- License ExpiredMay 12, 2010
Vanity Application Activity
Competing applications filed with the FCC for this callsign.