About ISO Country Code Lookup (ISO 3166-1)
Comprehensive ISO 3166-1 standard country code reference directory. Search across world sovereign states and territories to look up 2-letter Alpha-2 codes, 3-letter Alpha-3 codes, 3-digit numeric codes, international telephone dialing prefixes, capitals, currencies, and national flags.
Key Capabilities & Features
- Comprehensive database of world nations and territories with ISO 3166-1 codes
- Displays Alpha-2 (US, DE, JP), Alpha-3 (USA, DEU, JPN), and 3-digit Numeric codes
- Includes international calling prefixes (+1, +49, +81), capitals, currencies, and TLDs
- Filterable by continent (North America, Europe, Asia, South America, Africa, Oceania)
- 1-click copy for international codes and database identifiers
How to Use ISO Country Code Lookup (ISO 3166-1)
Search Country
Enter any country name, 2-letter code, 3-letter code, or telephone prefix.
Filter by Continent
Click continent tabs to narrow your search to specific geographic regions.
Inspect Codes
Review Alpha-2, Alpha-3, numeric codes, and national currency.
Copy Identifiers
Copy the required ISO code for database schemas, forms, or APIs.
Privacy & In-Browser Execution Guarantee
100% Client-Side. Geographic and country databases are searched completely locally in-browser.
Frequently Asked Questions
Why are there both Alpha-2 and Alpha-3 country codes?
ISO 3166-1 Alpha-2 (2 letters) is the most widely used format (basis for internet ccTLDs and IBANs), while Alpha-3 (3 letters) provides clearer visual recognition when abbreviated in international trade and passport documents.
What is the numeric-3 code used for?
The 3-digit numeric code is script-independent and used in computerized systems for countries that do not use the Latin alphabet.