K4USE
Available1x3District 4
Competitive callsign — 4 applications filed with the FCC.
License HolderVAVRINA, JAMES M
License ClassAdvanced
Min. Class RequiredGeneral
LocationSun City Center, FL
Grant DateAug 11, 2007
Expiration DateOct 1, 2017
Cancellation DateOct 2, 2019
Available for ApplicationsOct 2, 2019
K4USE is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by VAVRINA, JAMES M in Sun City Center, FL. 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 Gause, Shaun I on Apr 20, 2026. K4USE has 4 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- ....- ..- ... .
CW Weight: 23 units(Light (fast to send))
Voice Phonetics
Kilo Four Uniform Sierra Echo
Readability: 7/10(Good readability)
This callsign is available now
Requires General license or higher to apply for this callsign format (1x3).
License History
- License ExpiredOct 2, 2019
- License RenewedAug 11, 2007
- Administrative Update AppliedApr 24, 2007
- FRN Association Email SentMar 23, 2007
Vanity Application Activity
Competing applications filed with the FCC for this callsign.