Front desk · NATO Phonetic Alphabet
ICAO spelling alphabet
O Oscar
· filed 2026-07-18 · click a code to copy
In the NATO/ICAO spelling alphabet, O is spoken as “Oscar”. Its Morse code is −−−.
The code words were chosen so no two sound alike over bad radio — which is why pilots, sailors, and call-center agents all spell with the same 26 words, unchanged since 1956.