W6KOI
Available1x3District 6
Competitive callsign — 4 applications filed with the FCC.
License HolderCLARK, CAROL E
License ClassGeneral
Min. Class RequiredGeneral
LocationRANCHO CUCAMONGA, CA
Grant DateOct 4, 2012
Expiration DateDec 31, 2022
Cancellation DateJan 1, 2025
Available for ApplicationsJan 1, 2025
W6KOI is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by CLARK, CAROL E in RANCHO CUCAMONGA, CA. 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 Capital Radio Club on Nov 20, 2025. W6KOI has 5 recorded FCC license history events.
CW & Voice Analysis
Morse Code
.-- -.... -.- --- ..
CW Weight: 32 units(Moderate)
Voice Phonetics
Whiskey Six Kilo Oscar India
Readability: 7.5/10(High readability)
This callsign is available now
Requires General license or higher to apply for this callsign format (1x3).
License History
- License ExpiredJan 1, 2025
- License RenewedOct 4, 2012
- License ModifiedFeb 3, 2003
- License IssuedDec 31, 2002
- Vanity Callsign GrantedDec 31, 2002
Vanity Application Activity
Competing applications filed with the FCC for this callsign.