KM4ZX
Available2x2District 4
Competitive callsign — 1 application filed with the FCC.
License HolderFOSTER, WALTER J
License ClassAdvanced
Min. Class RequiredGeneral
LocationMERRITT ISLAND, FL
Grant DateOct 31, 1989
Expiration DateOct 31, 1999
Cancellation DateFeb 28, 2002
Available for ApplicationsNov 1, 2001
KM4ZX is a highly sought-after 2x2 format amateur radio callsign. The license is currently held by FOSTER, WALTER J in MERRITT ISLAND, FL. 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 Gray, Larry E on Feb 17, 2026. KM4ZX has 1 recorded FCC license history event.
CW & Voice Analysis
Morse Code
-.- -- ....- --.. -..-
CW Weight: 36 units(Moderate)
Voice Phonetics
Kilo Mike Four Zulu X-ray
Readability: 8.5/10(High readability)
This callsign is available now
Requires General license or higher to apply for this callsign format (2x2).
License History
- License ExpiredFeb 28, 2002
Vanity Application Activity
Competing applications filed with the FCC for this callsign.
- Gray, Larry EFiled Feb 17, 2026Not awardedFCC ↗