K4YOS
Available1x3District 4
Competitive callsign — 1 application filed with the FCC.
License HolderGROGAN, ERNEST M
License ClassGeneral
Min. Class RequiredGeneral
LocationNASHVILLE, TN
Grant DateOct 24, 1995
Expiration DateOct 24, 2005
Cancellation DateOct 25, 2007
Available for ApplicationsOct 25, 2007
K4YOS is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by GROGAN, ERNEST M in NASHVILLE, TN. 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 Bowers, Travis on Jun 15, 2026. K4YOS has 1 recorded FCC license history event.
CW & Voice Analysis
Morse Code
-.- ....- -.-- --- ...
CW Weight: 36 units(Moderate)
Voice Phonetics
Kilo Four Yankee Oscar Sierra
Readability: 7.5/10(High readability)
This callsign is available now
Requires General license or higher to apply for this callsign format (1x3).
License History
- License ExpiredOct 25, 2007
Vanity Application Activity
Competing applications filed with the FCC for this callsign.
- Bowers, TravisFiled Jun 15, 2026Not awardedFCC ↗