N4CIO
Active1x3District 4
Competitive callsign — 5 applications filed with the FCC.
License HolderSpearing, David W
License ClassAmateur Extra
Min. Class RequiredGeneral
LocationPortage, WI
Grant DateNov 29, 2016
Expiration DateFeb 23, 2027
N4CIO is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Spearing, David W in Portage, WI. This callsign has attracted significant interest in the amateur radio community, with 5 vanity applications filed with the FCC. The most recent was submitted by Burns, James C on Feb 5, 2007. N4CIO has 6 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-. ....- -.-. .. ---
CW Weight: 30 units(Light (fast to send))
Voice Phonetics
November Four Charlie India Oscar
Readability: 7/10(Good readability)
License History
- Administrative Update AppliedSep 28, 2023
- License RenewedNov 29, 2016
- License ModifiedDec 13, 2011
- License ModifiedMar 7, 2007
- License IssuedFeb 23, 2007
- Vanity Callsign GrantedFeb 23, 2007
Vanity Application Activity
Competing applications filed with the FCC for this callsign.