W0KOS
Active1x3District 0
Competitive callsign — 1 application filed with the FCC.
License HolderKrykun, Kostiantyn
License ClassGeneral
Min. Class RequiredGeneral
LocationCASTLE ROCK, CO
Grant DateJul 15, 2025
Expiration DateJul 15, 2035
W0KOS is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Krykun, Kostiantyn in CASTLE ROCK, CO. This callsign has attracted significant interest in the amateur radio community, with 1 vanity application filed with the FCC. The most recent was submitted by Krykun, Kostiantyn on Jun 25, 2025. W0KOS has 4 recorded FCC license history events.
CW & Voice Analysis
Morse Code
.-- ----- -.- --- ...
CW Weight: 41 units(Heavy (slower to send))
Voice Phonetics
Whiskey Zero Kilo Oscar Sierra
Readability: 7/10(Good readability)
License History
- License IssuedJul 15, 2025
- Vanity Callsign GrantedJul 15, 2025
- License ExpiredMar 10, 2015
- License RenewedFeb 26, 2003
Vanity Application Activity
Competing applications filed with the FCC for this callsign.
- Krykun, KostiantynFiled Jun 25, 2025Not awardedFCC ↗