The English Alphabet Reference lists all 26 letters of the modern English alphabet alongside three things professionals reach for constantly: the NATO phonetic alphabet code words, international Morse code, and Unicode code points. You can also type a word and have it spelled out phonetically or in Morse for use over the radio, on the phone, or for accessibility.
The NATO phonetic alphabet in full
The NATO phonetic alphabet (officially the ICAO/NATO radiotelephony spelling alphabet) was standardised after World War II to replace earlier inconsistent systems. Each code word was chosen so it sounds distinct from every other, even over heavily distorted radio links or phone lines where audio bandwidth is narrow. The 26 words are:
Alfa, Bravo, Charlie, Delta, Echo, Foxtrot, Golf, Hotel, India, Juliett, Kilo, Lima, Mike, November, Oscar, Papa, Quebec, Romeo, Sierra, Tango, Uniform, Victor, Whiskey, X-ray, Yankee, Zulu.
The deliberate spellings Alfa (not Alpha) and Juliett (not Juliet) prevent non-English speakers from mispronouncing the words in ways that would cause confusion. Oscar (not zero-sounding) and Uniform (clearly two syllables) follow the same principle of acoustic distinctiveness.
How international Morse code works
Samuel Morse’s original code assigned short sequences of dots and dashes to letters, with the most common English letters — E (one dot) and T (one dash) — receiving the shortest codes for efficiency. International Morse extended this to all 26 letters plus digits and some punctuation.
The timing ratios matter as much as the pattern: a dash is exactly three dot-lengths, the gap between elements within a letter is one dot, the gap between letters is three dots, and the gap between words is seven dots. When sent by hand at speed these ratios keep letters and words distinct without any delimiter character.
Unicode code points for the English alphabet
English letters have been in the ASCII character set since 1963, and the same assignments carry through to Unicode. Uppercase A through Z occupy code points U+0041 through U+005A; lowercase a through z are U+0061 through U+007A. The gap between any uppercase letter and its lowercase counterpart is always exactly 32 (hex 0x20), which is why C programmers toggle case with a single bitwise OR or AND on the sixth bit.
Example: spelling a call sign
To spell the call sign GERA:
- Phonetic:
Golf Echo Romeo Alfa - Morse:
--. . .-. .-
To spell MAYDAY (the aviation distress phrase, itself derived from the French m’aidez, help me):
- Phonetic:
Mike Alfa Yankee Delta Alfa Yankee
When to use it
Aviation and maritime radio operators use the phonetic alphabet for all call signs, waypoints, and clearances. It is equally common in customer service calls when confirming reference numbers, in military communications, and in accessibility contexts where individual letters must be read aloud unambiguously. Everything is generated locally in your browser — nothing you type leaves the page.