IE
Ireland
ISO 3166 Country Code
Europe
Country Codes
Alpha-2 Code (ISO 3166-1 alpha-2)
IE
Alpha-3 Code (ISO 3166-1 alpha-3)
IRL
Numeric Code (ISO 3166-1 numeric)
372
Common Usage
HTML lang attribute
<html lang="ie">
URL locale parameter
https://example.com/ie/
JavaScript/TypeScript
const country = "IE"; const countryName = "Ireland";
API Response (JSON)
{
"country": "IE",
"countryName": "Ireland",
"alpha3": "IRL",
"numeric": "372"
}ISO 3166 Standard
ISO 3166 is the international standard for country codes. The alpha-2 code (IE) is the most commonly used format for domain names, language tags, and internationalization. The alpha-3 code (IRL) is used in shipping, banking, and official documents. The numeric code (372) is language-independent and useful for systems with character encoding limitations.