W4SLB
Active1x3District 4
Competitive callsign — 7 applications filed with the FCC.
License HolderWILDT, MARION E
License ClassAmateur Extra
Min. Class RequiredGeneral
LocationLOUISVILLE, KY
Grant DateAug 13, 2026
Expiration DateAug 23, 2036
W4SLB is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by WILDT, MARION E in LOUISVILLE, KY. This callsign has attracted significant interest in the amateur radio community, with 7 vanity applications filed with the FCC. The most recent was submitted by Brown Jr, Gerald L on Apr 17, 2024. W4SLB has 5 recorded FCC license history events.
CW & Voice Analysis
Morse Code
.-- ....- ... .-.. -...
CW Weight: 29 units(Light (fast to send))
Voice Phonetics
Whiskey Four Sierra Lima Bravo
Readability: 7.5/10(High readability)
License History
- License RenewedAug 13, 2026
- Administrative Update AppliedJun 2, 2021
- License ModifiedSep 14, 2016
- License IssuedAug 23, 2016
- Vanity Callsign GrantedAug 23, 2016
Vanity Application Activity
Competing applications filed with the FCC for this callsign.