KG4SOO
Available2x3District 4
Competitive callsign — 1 application filed with the FCC.
License HolderMARTINEZ, OSVALDO
License ClassAdvanced
Min. Class RequiredTechnician
LocationPOMPANO BEACH, FL
Grant DateApr 4, 2002
Expiration DateApr 4, 2012
Cancellation DateApr 5, 2014
Available for ApplicationsApr 5, 2014
KG4SOO is a highly sought-after 2x3 format amateur radio callsign. The license is currently held by MARTINEZ, OSVALDO in POMPANO BEACH, 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 GRISHAM, HENRY D on Aug 10, 2026. KG4SOO has 2 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- --. ....- ... --- ---
CW Weight: 42 units(Heavy (slower to send))
Voice Phonetics
Kilo Golf Four Sierra Oscar Oscar
Readability: 7.5/10(High readability)
This callsign is available now
Requires Technician license or higher to apply for this callsign format (2x3).
License History
- License ExpiredApr 5, 2014
- License IssuedApr 4, 2002
Vanity Application Activity
Competing applications filed with the FCC for this callsign.
- GRISHAM, HENRY DFiled Aug 10, 2026Not awardedFCC ↗