To spell your name over the phone, say each letter as the NATO phonetic word: A is Alfa, B is Bravo, C is Charlie, and so on through Z for Zulu. So “Smith” becomes: Sierra, Mike, India, Tango, Hotel. This removes any ambiguity between letters that sound similar — like B and D, or M and N — which matters most when background noise or poor audio quality makes individual letters hard to distinguish.
When to Use Phonetic Spelling
Use the NATO alphabet any time you need to confirm a spelling without misunderstanding:
- Giving your name to a doctor’s office, pharmacy, or airline
- Reading out a confirmation code, booking reference, or license plate
- Giving an email address over the phone
- Confirming a password or account number with a bank
The more critical the information, the more worth it to slow down and spell phonetically. A misheard letter in a prescription or a flight booking can cause real problems.
The Full NATO Phonetic Alphabet
| Letter | NATO Word | Letter | NATO Word |
|---|---|---|---|
| A | Alfa | N | November |
| B | Bravo | O | Oscar |
| C | Charlie | P | Papa |
| D | Delta | Q | Quebec |
| E | Echo | R | Romeo |
| F | Foxtrot | S | Sierra |
| G | Golf | T | Tango |
| H | Hotel | U | Uniform |
| I | India | V | Victor |
| J | Juliett | W | Whiskey |
| K | Kilo | X | Xray |
| L | Lima | Y | Yankee |
| M | Mike | Z | Zulu |
These words are defined in ICAO Annex 10 and adopted by NATO effective 1 March 1956. They were chosen to be recognizable across many languages and accents.
Step-by-Step: Spelling Common Names
JOHNSON: Juliett — Oscar — Hotel — November — Sierra — Oscar — November
GARCIA: Golf — Alfa — Romeo — Charlie — India — Alfa
NGUYEN: November — Golf — Uniform — Yankee — Echo — November
LI: Lima — India
O’BRIEN: Oscar — apostrophe — Bravo — Romeo — India — Echo — November
For the apostrophe, just say “apostrophe.” For hyphenated names, say “hyphen” at the hyphen.
Common Confusable Letters and Their Words
Some letters are particularly hard to distinguish in poor audio:
| Hard pair | Problem | Solution |
|---|---|---|
| B and D | Both stop consonants | Bravo vs. Delta — completely different sounds |
| M and N | Similar nasal sounds | Mike vs. November — different length and sound |
| S and F | Similar fricatives | Sierra vs. Foxtrot — distinct opening syllables |
| P and T | Both voiceless stops | Papa vs. Tango — different vowels |
| E and A | Similar vowel sounds | Echo vs. Alfa — clear difference |
Spelling an Email Address
Email addresses mix letters, numbers, and symbols. Walk through them piece by piece:
Example: j.smith42@company.com
Say: “Juliett, dot, Sierra, Mike, India, Tango, Hotel, four, two, at sign, Charlie, Oscar, Mike, Papa, Alfa, November, Yankee, dot, Charlie, Oscar, Mike”
Read lowercase and uppercase the same way unless case matters (some email providers are case-sensitive for passwords, but email addresses themselves are not).
If the Other Person Doesn’t Know the NATO Alphabet
If the person you’re talking to is not familiar with NATO words, use any clear, distinct words — ideally the name of something obvious, like a city or common word. Avoid words that sound alike, and avoid words the person might not know. For example:
- A as in Apple
- B as in Boy
- C as in Cat
This is less standardized than NATO but better than no spelling at all. Stick to common, monosyllabic words to keep things moving.
Automatic Conversion
The NATO phonetic alphabet converter converts any name, word, or phrase to its full NATO phonetic spelling instantly. Type in your name and read out the words. The /nato-phonetic-alphabet/ reference page shows the full alphabet with pronunciation.
For the history of why “Alfa” is spelled that way and how this alphabet became the global standard, see NATO phonetic alphabet history.