ISO 3166-1 alpha-2 codes are two-letter country codes defined in ISO 3166-1, part of the ISO 3166 standard published by the International Organization for Standardization , to represent countries, dependent territories, and special areas of geographical interest. They are the most widely used of the country codes published by ISO , and are used most prominently for the Internet's country codeThe PCT now has 157 Contracting States. Two-Letter. Code. Name of State. Date on Which State Became. Bound by the PCT 1. AE. United Arab Emirates. 10 March 1999. In cases where a person was born in one country and conducted the work that made them famous in another, the continent and ethnic/cultural group or country where the person became famous is recorded in the gazetteer. The country of birth is recorded in the origin field of the gazetteer. (Effective April 2014) Continents
The code is based on the ISO 3166-1 "Country Codes". ISO 3166-1 numeric-3 is a set of 3-digit codes, independent of a writing system, developed and maintained by the United Nations Statistics Division to represent the names of countries and dependent areas. Geopolitical Entities and Codes (formerly FIPS PUB 10-4) are intended for general use
The function can convert to and from several different country coding schemes. countrycode. It uses regular expressions to convert country names (e.g. Sri Lanka) into any of those coding schemes, or into standardized country names in several languages. It can create variables with the name of the continent and/or several regional groupings todiQTX.