NATO Phonetic Alphabet

The ICAO radiotelephony alphabet used by pilots, air traffic controllers, the military and emergency services. Tap any letter to hear it.

Alphabet chart: A to Z

Aviation numbers

ICAO pronunciation for numbers. Pilots say each digit separately: 250 is "too fife zero".

Spell it the pilot way

For a complete score and missed-letter review, take the ten-question NATO quiz.

Quick letter practice

Score: 0/0

What is the code word for H?

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Phonetic alphabet FAQ

What is the NATO phonetic alphabet?

It is the international radiotelephony spelling alphabet adopted by ICAO and NATO. Each letter has a code word, from Alfa for A to Zulu for Z, so letters can't be confused over a radio or phone line.

Why is it spelled 'Alfa' and 'Juliett'?

ICAO uses these spellings so speakers of other languages pronounce them correctly: 'Alfa' avoids a silent 'ph', and the double 't' in 'Juliett' stops French speakers treating the final 't' as silent.

Why do pilots say 'tree' and 'niner'?

ICAO number pronunciation uses 'tree' for 3, 'fife' for 5 and 'niner' for 9, so they're clearer over a noisy radio and 'nine' isn't confused with the German 'nein'.

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