Spell Out Confirmation Codes on the Phone
Avoid letter confusion (B/D/P/T) when reading codes over the phone.
Used by aviation, military, and international communication. Standard since 1956.
Spoken form
Hotel Echo Lima Lima Oscar (dash) Whiskey Oscar Romeo Lima Delta
Full NATO (ICAO) alphabet
💡 Use cases: clearly communicating confirmation codes over the phone, spelling out passwords in customer service, reading license plates over radio, pilot communications, and any voice channel where letter confusion (B vs D vs P) is costly.
Phone Calls tips
For airline confirmation numbers, gift card codes, or any alphanumeric code — "Alpha-Bravo-Charlie-1-2-3" beats "A-B-C-1-2-3".
For customer service interactions, use the spelling to ensure perfect transcription of account numbers, names, etc.
The Spoken Form output below is what to say verbally — practice saying it through once before the call.
Conas a Oibríonn sé
Cén fáth ár gceann a úsáid?
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HAM radio operators use phonetic alphabets for cal