ISO 3166 is an international standard for country codes. It defines two-letter (alpha-2, e.g. 'US'), three-letter (alpha-3, e.g. 'USA'), and numeric (e.g. '840') codes for every country and territory recognized by the United Nations.

ISO Alpha-2 is the familiar two-letter code used in domain names, passports, and many APIs (e.g. 'GB' for United Kingdom). ISO Alpha-3 is a three-letter code offering more distinction between similar country names (e.g. 'GBR'). Both are internationally standardized.

ISO 4217 is the international standard for currency codes. Each currency is represented by a three-letter alphabetic code (e.g. 'USD' for US Dollar, 'EUR' for Euro, 'GBP' for British Pound). These codes are used in banking, finance, and international trade.

A country calling code (also known as a dialing code or IDD code) is a numeric prefix dialed before a local telephone number when calling internationally. For example, the calling code for the United States is '+1' and for Germany is '+49'. These are standardized by the ITU (International Telecommunication Union) in recommendation E.164.

Use the search bar on this page. Enter the two-letter ISO alpha-2 code (e.g. 'DE'), three-letter ISO alpha-3 code (e.g. 'DEU'), the country name, dialing code (e.g. '+49'), or currency code (e.g. 'EUR') and the results will appear instantly.

Some countries adopt a shared currency. For example, all 20 Eurozone countries use 'EUR', and several Caribbean island nations use 'XCD' (East Caribbean Dollar). Additionally, some territories use the currency of their sovereign state.

The North American Numbering Plan (NANP) assigns '+1' to the United States, Canada, and many Caribbean territories. Similarly, some territories fall under the calling code of their governing country.

Yes. The country code and currency information presented here is based on publicly available international standards (ISO 3166, ISO 4217, ITU-T E.164) and is free to reference. This tool is provided for educational and development purposes.