W4ZFX
Cancelled1x3District 4
Competitive callsign — 2 applications filed with the FCC.
License HolderCZACZKOWSKI, GREGORY J
License ClassTechnician
Min. Class RequiredGeneral
LocationEdwardsville, IL
Grant DateMar 3, 2021
Cancellation DateDec 27, 2024
Available for ApplicationsDec 28, 2026
W4ZFX is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by CZACZKOWSKI, GREGORY J in Edwardsville, IL. This callsign has attracted significant interest in the amateur radio community, with 2 vanity applications filed with the FCC. The most recent was submitted by BLANSETT, JEFFREY M on Mar 12, 2001. W4ZFX has 9 recorded FCC license history events.
CW & Voice Analysis
Morse Code
.-- ....- --.. ..-. -..-
CW Weight: 36 units(Moderate)
Voice Phonetics
Whiskey Four Zulu Foxtrot X-ray
Readability: 8/10(High readability)
Available Dec 28, 2026 (115 days remaining)
Requires General license or higher to apply for this callsign format (1x3).
License History
- License CanceledDec 27, 2024
- License ModifiedNov 18, 2024
- License RenewedMar 3, 2021
- License RenewedAug 17, 2011
- Authorization PrintedApr 20, 2001
- Internal Correction AppliedApr 19, 2001
- Internal Duplicate RequestedApr 19, 2001
- Internal Correction AppliedApr 19, 2001
- License IssuedMar 30, 2001
Vanity Application Activity
Competing applications filed with the FCC for this callsign.