Country code ISO 3166
ISO 3166 is a global country code standard issued by the International Organization for Standardization (ISO). The standard specifies the names of countries, dependent territories, special areas of geographic interest, and their main branches (such as provinces or states). The country code has two-letter codes, three-letter codes, and three-digit codes, and the two-letter code (alpha-2) is used in QWeather. The official name of ISO 3166 is country name and its branch code.
ISO 3166 has developed to many versions today, including:
ISO 3166-1: Defines the representative number of country names and their branches, including country codes, and defines the names of countries, dependent territories and special regions. There are two-letter codes, three-letter codes, and three-digit codes. First published in 1974. ISO 3166-2: Defines the codes of major administrative regions (for example, provinces or states) of a country or region. ISO 3166-3: defines the country names and codes deleted or replaced in ISO 3166-1. First published in 1998.
For related content of ISO 3166, please refer to:
Wikipedia: https://en.wikipedia.org/wiki/ISO_3166 ISO: https://www.iso.org/iso-3166-country-codes.html
The latest ISO 3166 list can refer to: