W3MSR
Available1x3District 3
Competitive callsign — 3 applications filed with the FCC.
License HolderRosenthal, Mark S
License ClassAmateur Extra
Min. Class RequiredGeneral
LocationBrunswick, ME
Grant DateJun 11, 2022
Expiration DateJun 11, 2032
Cancellation DateJul 15, 2022
Available for ApplicationsJul 16, 2024
W3MSR is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Rosenthal, Mark S in Brunswick, ME. This callsign has attracted significant interest in the amateur radio community, with 3 vanity applications filed with the FCC. The most recent was submitted by Mother Seton Amateur Radio Club on May 27, 2025. W3MSR has 5 recorded FCC license history events.
CW & Voice Analysis
Morse Code
.-- ...-- -- ... .-.
CW Weight: 30 units(Light (fast to send))
Voice Phonetics
Whiskey Three Mike Sierra Romeo
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 CanceledJul 15, 2022
- License RenewedJun 11, 2022
- License ModifiedJun 18, 2018
- License IssuedMay 15, 2012
- Vanity Callsign GrantedMay 15, 2012
Vanity Application Activity
Competing applications filed with the FCC for this callsign.