K4ES
Active1x2District 4
Competitive callsign — 73 applications filed with the FCC.
License HolderBuckwalter, Merial E
License ClassTechnician
Min. Class RequiredAmateur Extra
LocationLittleton, CO
Grant DateMar 29, 2024
Expiration DateMar 29, 2034
K4ES is a highly sought-after 1x2 format amateur radio callsign. The license is currently held by Buckwalter, Merial E in Littleton, CO. This callsign has attracted significant interest in the amateur radio community, with 73 vanity applications filed with the FCC. The most recent was submitted by GILES II, ARTHUR W on May 29, 2026. K4ES has 10 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- ....- . ...
CW Weight: 18 units(Ultra-light (very fast to send))
Voice Phonetics
Kilo Four Echo Sierra
Readability: 8/10(High readability)
License History
- Vanity Callsign GrantedMar 29, 2024
- License IssuedMar 29, 2024
- License ExpiredMar 12, 2024
- License IssuedMar 10, 2012
- Vanity Callsign GrantedMar 10, 2012
- Internal Correction AppliedApr 15, 2011
- Internal Correction AppliedApr 15, 2011
- Internal Correction AppliedApr 15, 2011
- Tax ID (TIN) AddedFeb 13, 2004
- License RenewedFeb 13, 2004
Vanity Application Activity
Competing applications filed with the FCC for this callsign.