W4MRB
Available1x3District 4
Competitive callsign — 2 applications filed with the FCC.
License HolderHoover, Robert L
License ClassAdvanced
Min. Class RequiredGeneral
LocationBethesda, MD
Grant DateApr 14, 2014
Expiration DateApr 14, 2024
Cancellation DateApr 15, 2026
Available for ApplicationsApr 15, 2026
W4MRB is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Hoover, Robert L in Bethesda, MD. This callsign has attracted significant interest in the amateur radio community, with 2 vanity applications filed with the FCC. The most recent was submitted by BRADSHAW, MARK R on Dec 10, 2018. W4MRB has 3 recorded FCC license history events.
CW & Voice Analysis
Morse Code
.-- ....- -- .-. -...
CW Weight: 31 units(Moderate)
Voice Phonetics
Whiskey Four Mike Romeo Bravo
Readability: 8/10(High readability)
This callsign is available now
Requires General license or higher to apply for this callsign format (1x3).
License History
- License ExpiredApr 15, 2026
- License RenewedApr 14, 2014
- Tax ID (TIN) AddedJan 14, 2004
Vanity Application Activity
Competing applications filed with the FCC for this callsign.