KF0W
Active2x1District 0
Competitive callsign — 6 applications filed with the FCC.
License HolderPatin, Sidney L
License ClassAmateur Extra
Min. Class RequiredAmateur Extra
LocationColorado Springs, CO
Grant DateApr 2, 2026
Expiration DateJun 27, 2036
KF0W is a highly sought-after 2x1 format amateur radio callsign. The license is currently held by Patin, Sidney L in Colorado Springs, CO. 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 Bernhardt, Steven J on May 11, 2015. KF0W has 5 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- ..-. ----- .--
CW Weight: 35 units(Moderate)
Voice Phonetics
Kilo Foxtrot Zero Whiskey
Readability: 8/10(High readability)
License History
- License RenewedApr 2, 2026
- License RenewedApr 7, 2016
- License IssuedJun 27, 2006
- Vanity Callsign GrantedJun 27, 2006
- License CanceledMar 20, 2002
Vanity Application Activity
Competing applications filed with the FCC for this callsign.