K0IO
Active1x2District 0
Competitive callsign — 6 applications filed with the FCC.
License HolderScarisbrick, Aaron M
License ClassAmateur Extra
Min. Class RequiredAmateur Extra
LocationSalt Lake City, UT
Grant DateDec 10, 2021
Expiration DateDec 10, 2031
K0IO is a highly sought-after 1x2 format amateur radio callsign. The license is currently held by Scarisbrick, Aaron M in Salt Lake City, UT. This callsign has attracted significant interest in the amateur radio community, with 6 vanity applications filed with the FCC. The most recent was submitted by Brown II, Eddy B on Nov 29, 2021. K0IO has 9 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- ----- .. ---
CW Weight: 33 units(Moderate)
Voice Phonetics
Kilo Zero India Oscar
Readability: 7.5/10(High readability)
License History
- Administrative Update AppliedJul 9, 2026
- License IssuedDec 10, 2021
- Vanity Callsign GrantedDec 10, 2021
- Internal Correction AppliedOct 22, 2021
- Internal Correction AppliedOct 22, 2021
- License RenewedApr 24, 2017
- Administrative Update AppliedJun 5, 2015
- Administrative Update AppliedJan 16, 2009
- License RenewedApr 17, 2007
Vanity Application Activity
Competing applications filed with the FCC for this callsign.