K4IO
Active1x2District 4
Competitive callsign — 7 applications filed with the FCC.
License HolderCram, James B
License ClassAmateur Extra
Min. Class RequiredAmateur Extra
LocationMansfield, GA
Grant DateJun 12, 2018
Expiration DateJun 12, 2028
K4IO is a highly sought-after 1x2 format amateur radio callsign. The license is currently held by Cram, James B in Mansfield, GA. This callsign has attracted significant interest in the amateur radio community, with 7 vanity applications filed with the FCC. The most recent was submitted by FOLK, JEFFREY R on Nov 6, 2018. K4IO has 9 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- ....- .. ---
CW Weight: 25 units(Light (fast to send))
Voice Phonetics
Kilo Four India Oscar
Readability: 8/10(High readability)
License History
- Administrative Update AppliedMay 13, 2025
- License IssuedJun 12, 2018
- Vanity Callsign GrantedJun 12, 2018
- Internal Correction AppliedMay 24, 2018
- Internal Correction AppliedMay 24, 2018
- License RenewedMay 8, 2006
- Administrative Update AppliedFeb 8, 2005
- Administrative Update AppliedApr 17, 2001
- Tax ID (TIN) AddedApr 17, 2001
Vanity Application Activity
Competing applications filed with the FCC for this callsign.