N4NUL
Available1x3District 4
Competitive callsign — 2 applications filed with the FCC.
License HolderFEDERGREEN, WARREN R
License ClassGeneral
Min. Class RequiredGeneral
LocationPORT SAINT LUCIE, FL
Grant DateOct 5, 1993
Expiration DateOct 5, 2003
Cancellation DateOct 6, 2005
Available for ApplicationsOct 6, 2005
N4NUL is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by FEDERGREEN, WARREN R in PORT SAINT LUCIE, FL. This callsign has attracted significant interest in the amateur radio community, with 2 vanity applications filed with the FCC. The most recent was submitted by Gelbutovskiy, Alex on Apr 21, 2026. N4NUL has 1 recorded FCC license history event.
CW & Voice Analysis
Morse Code
-. ....- -. ..- .-..
CW Weight: 26 units(Light (fast to send))
Voice Phonetics
November Four November Uniform Lima
Readability: 6.5/10(Good readability)
This callsign is available now
Requires General license or higher to apply for this callsign format (1x3).
License History
- License ExpiredJan 4, 2006
Vanity Application Activity
Competing applications filed with the FCC for this callsign.