KM4SR
Available2x2District 4
Competitive callsign — 1 application filed with the FCC.
License HolderMUNDY JR, WILLIAM M
License ClassTechnician
Min. Class RequiredGeneral
LocationWAYNESBORO, VA
Grant DateJul 25, 2009
Expiration DateJul 25, 2019
Cancellation DateJul 27, 2021
Available for ApplicationsJul 26, 2021
KM4SR is a highly sought-after 2x2 format amateur radio callsign. The license is currently held by MUNDY JR, WILLIAM M in WAYNESBORO, VA. 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 Rumplik, Steven on Aug 18, 2025. KM4SR has 3 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- -- ....- ... .-.
CW Weight: 28 units(Light (fast to send))
Voice Phonetics
Kilo Mike Four Sierra Romeo
Readability: 7.5/10(High readability)
This callsign is available now
Requires General license or higher to apply for this callsign format (2x2).
License History
- License ExpiredJul 27, 2021
- License RenewedJul 25, 2009
- Administrative Update AppliedOct 23, 2004
Vanity Application Activity
Competing applications filed with the FCC for this callsign.
- Rumplik, StevenFiled Aug 18, 2025DismissedFCC ↗