W4ZJK
Active1x3District 4
Competitive callsign — 4 applications filed with the FCC.
License HolderSchulz, Erik A
License ClassTechnician
Min. Class RequiredGeneral
LocationGreeley, CO
Grant DateFeb 20, 2026
Expiration DateFeb 20, 2036
W4ZJK is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Schulz, Erik A in Greeley, CO. This callsign has attracted significant interest in the amateur radio community, with 4 vanity applications filed with the FCC. The most recent was submitted by Schulz, Erik A on Feb 2, 2026. W4ZJK has 7 recorded FCC license history events.
CW & Voice Analysis
Morse Code
.-- ....- --.. .--- -.-
CW Weight: 39 units(Moderate)
Voice Phonetics
Whiskey Four Zulu Juliet Kilo
Readability: 7.5/10(High readability)
License History
- Vanity Callsign GrantedFeb 20, 2026
- License IssuedFeb 20, 2026
- License CanceledAug 22, 2009
- Administrative Update AppliedDec 9, 2008
- Administrative Update AppliedJul 10, 2008
- License IssuedOct 10, 2007
- Vanity Callsign GrantedOct 10, 2007
Vanity Application Activity
Competing applications filed with the FCC for this callsign.