The NATO phonetic alphabet doesn't have any codewords for numbers, only for letters of the alphabet.
OSS-CAH
Oscar
A=Alpha B=Bravo C=Charlie D=Delta E=Echo F=Foxtrot G=Golf H=Hotel I=India J=Juliet K=Kilo L=Lima M=Mike N=November O=Oscar P=Papa Q=Quebec R=Romeo S=Sierra T=Tango U=Uniform V=Victor W=Whiskey...
gametes