KB4MBU
Active2x3District 4
Competitive callsign — 1 application filed with the FCC.
License HolderAlfaro, Daphne E
License ClassTechnician
Min. Class RequiredTechnician
LocationMiami, FL
Grant DateFeb 8, 2022
Expiration DateFeb 8, 2032
KB4MBU is a highly sought-after 2x3 format amateur radio callsign. The license is currently held by Alfaro, Daphne E in Miami, FL. This callsign has attracted significant interest in the amateur radio community, with 1 vanity application filed with the FCC. The most recent was submitted by Alfaro, Daphne E on Jan 19, 2022. KB4MBU has 11 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- -... ....- -- -... ..-
CW Weight: 37 units(Moderate)
Voice Phonetics
Kilo Bravo Four Mike Bravo Uniform
Readability: 7.5/10(High readability)
License History
- Administrative Update AppliedFeb 25, 2025
- Administrative Update AppliedMay 18, 2023
- License IssuedFeb 8, 2022
- Vanity Callsign GrantedFeb 8, 2022
- License CanceledFeb 14, 2017
- Administrative Update AppliedDec 22, 2016
- Administrative Update AppliedDec 22, 2016
- License RenewedDec 15, 2015
- License ModifiedDec 21, 2007
- Tax ID (TIN) AddedJul 6, 2005
- License RenewedJul 6, 2005
Vanity Application Activity
Competing applications filed with the FCC for this callsign.
- Alfaro, Daphne EFiled Jan 19, 2022Not awardedFCC ↗