Country codes from ISO 3166 are available in both alpha-2 and alpha-3 variants. They take the form of the Iso3166Part1Alpha2Country and Iso3166Part1Alpha3Country enums, respectively.
The Iso3166Part1Alpha2Country enum contains a member for each of the ISO 3166-1 alpha-2 country codes. The name of the member is the country code with the value being the numeric code associated with the alpha-2 code.
// United Kingdom of Great Britain and Northern Ireland
var ukCountryCode = Iso3166Part1Alpha2Country.GB;
The Iso3166Part1Alpha3Country enum contains a member for each of the ISO 3166-1 alpha-3 country codes. The name of the member is the country code with the value being the numeric code associated with the alpha-3 code.
// Greece
var greeceCountryCode = Iso3166Part1Alpha3Country.GRC;