K9CAO
Active1x3District 9
Competitive callsign — 2 applications filed with the FCC.
License HolderCao, Lei
License ClassTechnician
Min. Class RequiredGeneral
LocationFountain Hills, AZ
Grant DateJan 7, 2023
Expiration DateJan 7, 2033
K9CAO is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Cao, Lei in Fountain Hills, AZ. This callsign has attracted significant interest in the amateur radio community, with 2 vanity applications filed with the FCC. The most recent was submitted by Cao, Lei on Dec 20, 2022. K9CAO has 3 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- ----. -.-. .- ---
CW Weight: 41 units(Heavy (slower to send))
Voice Phonetics
Kilo Nine Charlie Alpha Oscar
Readability: 8/10(High readability)
License History
- Administrative Update AppliedJul 22, 2025
- License IssuedJan 7, 2023
- Vanity Callsign GrantedJan 7, 2023
Vanity Application Activity
Competing applications filed with the FCC for this callsign.