K1LOS
Active1x3District 1
Competitive callsign — 10 applications filed with the FCC.
License HolderBurbano, Joseph A
License ClassGeneral
Min. Class RequiredGeneral
LocationCastle Rock, CO
Grant DateMar 17, 2026
Expiration DateMar 17, 2036
K1LOS is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Burbano, Joseph A in Castle Rock, CO. This callsign has attracted significant interest in the amateur radio community, with 10 vanity applications filed with the FCC. The most recent was submitted by Delaney, Joshua C on Feb 18, 2016. K1LOS has 6 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- .---- .-.. --- ...
CW Weight: 38 units(Moderate)
Voice Phonetics
Kilo One Lima Oscar Sierra
Readability: 7.5/10(High readability)
License History
- License RenewedMar 17, 2026
- Administrative Update AppliedOct 22, 2024
- Administrative Update AppliedJan 28, 2023
- Administrative Update AppliedSep 10, 2020
- License IssuedFeb 17, 2016
- Vanity Callsign GrantedFeb 17, 2016
Vanity Application Activity
Competing applications filed with the FCC for this callsign.