KB4SM
Available2x2District 4
Competitive callsign — 3 applications filed with the FCC.
License HolderBOSTOCK, ROGER W
License ClassAdvanced
Min. Class RequiredGeneral
Locationnorth oxford, MA
Grant DateOct 17, 2013
Expiration DateOct 17, 2023
Cancellation DateJul 17, 2020
Available for ApplicationsJul 18, 2022
KB4SM is a highly sought-after 2x2 format amateur radio callsign. The license is currently held by BOSTOCK, ROGER W in north oxford, MA. 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 Mejia, Samuel on Sep 12, 2022. KB4SM has 6 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- -... ....- ... --
CW Weight: 29 units(Light (fast to send))
Voice Phonetics
Kilo Bravo Four Sierra Mike
Readability: 8/10(High readability)
This callsign is available now
Requires General license or higher to apply for this callsign format (2x2).
License History
- License CanceledJul 17, 2020
- Administrative Update AppliedJun 30, 2020
- Administrative Update AppliedJun 30, 2020
- License IssuedOct 17, 2013
- Vanity Callsign GrantedOct 17, 2013
- License ExpiredJul 18, 2006
Vanity Application Activity
Competing applications filed with the FCC for this callsign.