The International Radiotelephony Spelling Alphabet, commonly known as the ICAO phonetic alphabet, sometimes called the NATO alphabet or spelling alphabet and the ITU radiotelephonic or phonetic alphabet, is the most widely used radiotelephonic spelling alphabet.
| Letter | NATO | Western Union |
|---|---|---|
| A | Alpha | Adams |
| B | Bravo | Boston |
| C | Charlie | Chicago |
| D | Delta | Denver |
| E | Echo | Easy |
| F | Foxtrot | Frank |
| G | Golf | George |
| H | Hotel | Henry |
| I | India | Ida |
| J | Juliet | John |
| K | Kilo | King |
| L | Lima | Lincoln |
| M | Mike | Mary |
| N | November | New York |
| O | Oscar | Ocean |
| P | Papa | Peter |
| Q | Quebec | Queen |
| R | Romeo | Roger |
| S | Sierra | Sugar |
| T | Tango | Thoma |
| U | Uniform | Union |
| V | Victor | Victor/td> |
| W | Whiskey | William |
| X | X-ray | X-ray |
| Y | Yankee | Young |
| Z | Zulu | Zero |
