KO4SRC
Active2x3District 4
Competitive callsign — 2 applications filed with the FCC.
License HolderODonnell, Michael P
License ClassTechnician
Min. Class RequiredTechnician
LocationGulfport, MS
Grant DateJun 22, 2019
Expiration DateJun 22, 2029
KO4SRC is a highly sought-after 2x3 format amateur radio callsign. The license is currently held by ODonnell, Michael P in Gulfport, MS. 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 Crews, Stephen R on Jan 15, 2026. KO4SRC has 2 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- --- ....- ... .-. -.-.
CW Weight: 39 units(Moderate)
Voice Phonetics
Kilo Oscar Four Sierra Romeo Charlie
Readability: 6.5/10(Good readability)
License History
- License IssuedJun 22, 2019
- Vanity Callsign GrantedJun 22, 2019
Vanity Application Activity
Competing applications filed with the FCC for this callsign.