WB4ZSL
Active2x3District 4
No competing applications on record.
License HolderSWAIM, DONNIE L
License ClassGeneral
Min. Class RequiredTechnician
LocationKERNERSVILLE, NC
Grant DateMar 27, 2026
Expiration DateMay 24, 2036
WB4ZSL is a 2x3 format amateur radio callsign. It is currently registered to SWAIM, DONNIE L in KERNERSVILLE, NC. There are currently no competing vanity applications or pending FCC filings on record for this callsign. Add it to your watchlist to receive an immediate alert if another operator files a vanity application.
CW & Voice Analysis
Morse Code
.-- -... ....- --.. ... .-..
CW Weight: 37 units(Moderate)
Voice Phonetics
Whiskey Bravo Four Zulu Sierra Lima
Readability: 7/10(Good readability)
License History
- Administrative Update AppliedMay 4, 2026
- Administrative Update AppliedApr 1, 2026
- License RenewedMar 27, 2026
- License RenewedMar 3, 2016
- License ModifiedFeb 13, 2009
- Tax ID (TIN) AddedMar 3, 2006
- License RenewedMar 3, 2006
Vanity Application Activity
Competing applications filed with the FCC for this callsign.
No competing applications on record. Verify on the FCC ULS application search before filing.