KM4ZYX
Cancelled2x3District 4
Competitive callsign — 1 application filed with the FCC.
License HolderBurroughs, William T
License ClassTechnician
Min. Class RequiredTechnician
LocationAurora, CO
Grant DateDec 30, 2016
Cancellation DateSep 26, 2025
Available for ApplicationsSep 27, 2027
KM4ZYX is a highly sought-after 2x3 format amateur radio callsign. The license is currently held by Burroughs, William T in Aurora, 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 Whitaker, Clark on Oct 6, 2020. KM4ZYX has 5 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- -- ....- --.. -.-- -..-
CW Weight: 46 units(Heavy (slower to send))
Voice Phonetics
Kilo Mike Four Zulu Yankee X-ray
Readability: 8/10(High readability)
Available Sep 27, 2027 (424 days remaining)
Requires Technician license or higher to apply for this callsign format (2x3).
License History
- License CanceledSep 26, 2025
- Administrative Update AppliedNov 30, 2024
- Administrative Update AppliedMar 8, 2023
- System-Generated GrantDec 30, 2016
- License IssuedDec 30, 2016
Vanity Application Activity
Competing applications filed with the FCC for this callsign.
- Whitaker, ClarkFiled Oct 6, 2020Not awardedFCC ↗