W4SUL
Active1x3District 4
Competitive callsign — 4 applications filed with the FCC.
License HolderMARLAN, MICHAEL E
License ClassGeneral
Min. Class RequiredGeneral
LocationWindsor, CO
Grant DateMar 4, 2025
Expiration DateApr 22, 2035
W4SUL is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by MARLAN, MICHAEL E in Windsor, 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 RODRIGUEZ, JULIO E on May 23, 2005. W4SUL has 8 recorded FCC license history events.
CW & Voice Analysis
Morse Code
.-- ....- ... ..- .-..
CW Weight: 28 units(Light (fast to send))
Voice Phonetics
Whiskey Four Sierra Uniform Lima
Readability: 7/10(Good readability)
License History
- Administrative Update AppliedApr 25, 2026
- License RenewedMar 4, 2025
- Administrative Update AppliedNov 5, 2024
- License RenewedMar 10, 2015
- Administrative Update AppliedSep 17, 2013
- Administrative Update AppliedMay 17, 2005
- License IssuedApr 22, 2005
- Vanity Callsign GrantedApr 22, 2005
Vanity Application Activity
Competing applications filed with the FCC for this callsign.