K4KFI
Active1x3District 4
Competitive callsign — 4 applications filed with the FCC.
License HolderNewbill, Mark E
License ClassAmateur Extra
Min. Class RequiredGeneral
LocationHumboldt, TN
Grant DateJun 22, 2023
Expiration DateJul 9, 2033
K4KFI is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Newbill, Mark E in Humboldt, TN. 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 Newbill, Mark E on Jun 19, 2013. K4KFI has 6 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- ....- -.- ..-. ..
CW Weight: 29 units(Light (fast to send))
Voice Phonetics
Kilo Four Kilo Foxtrot India
Readability: 7.5/10(High readability)
License History
- License ModifiedMar 26, 2026
- License RenewedJun 22, 2023
- License IssuedJul 9, 2013
- Vanity Callsign GrantedJul 9, 2013
- Internal Correction AppliedJan 24, 2005
- Internal Correction AppliedJan 24, 2005
Vanity Application Activity
Competing applications filed with the FCC for this callsign.