VN
Vietnam
ISO 3166 Country Code
Asia
Country Codes
Alpha-2 Code (ISO 3166-1 alpha-2)
VN
Alpha-3 Code (ISO 3166-1 alpha-3)
VNM
Numeric Code (ISO 3166-1 numeric)
704
Common Usage
HTML lang attribute
<html lang="vn">
URL locale parameter
https://example.com/vn/
JavaScript/TypeScript
const country = "VN"; const countryName = "Vietnam";
API Response (JSON)
{
"country": "VN",
"countryName": "Vietnam",
"alpha3": "VNM",
"numeric": "704"
}ISO 3166 Standard
ISO 3166 is the international standard for country codes. The alpha-2 code (VN) is the most commonly used format for domain names, language tags, and internationalization. The alpha-3 code (VNM) is used in shipping, banking, and official documents. The numeric code (704) is language-independent and useful for systems with character encoding limitations.