Country codes are unique identifiers assigned to nations for seamless global communication, trade, and digital services. They are used in international dialling, banking, postal services, and internet ...

The ISO 3166 classification defines unique two- and three-digit-codes for all countries worldwide. This list below offers an overview of all two-digit ISO country codes (ISO-3166 Alpha-2) for all ...

3-letter ISO country codes, lower-case, reflecting the place(s) of publication recorded in 260 $a. See CODES for UNBIS country codes in field 049. The first country ...