W7DUM
Available1x3District 7
Competitive callsign — 5 applications filed with the FCC.
License HolderRosso, Joseph A
License ClassGeneral
Min. Class RequiredGeneral
LocationPhoenix, AZ
Grant DateAug 23, 2005
Expiration DateAug 23, 2015
Cancellation DateJun 23, 2006
Available for ApplicationsJun 24, 2008
W7DUM is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Rosso, Joseph A in Phoenix, AZ. This callsign has attracted significant interest in the amateur radio community, with 5 vanity applications filed with the FCC. The most recent was submitted by Lederman, Andrew C on Feb 24, 2025. W7DUM has 4 recorded FCC license history events.
CW & Voice Analysis
Morse Code
.-- --... -.. ..- --
CW Weight: 32 units(Moderate)
Voice Phonetics
Whiskey Seven Delta Uniform Mike
Readability: 7.5/10(High readability)
This callsign is available now
Requires General license or higher to apply for this callsign format (1x3).
License History
- License CanceledJun 23, 2006
- License ModifiedApr 24, 2006
- License IssuedAug 23, 2005
- Vanity Callsign GrantedAug 23, 2005
Vanity Application Activity
Competing applications filed with the FCC for this callsign.