You can obtain the full list of country codes by consulting the official documentation for ISO 3166-1 alpha-2 standards.
Here are some examples of commonly used country codes:
FR: France
DE : Germany
US: United States
GB: United Kingdom
ES: Spain
IT : Italy
For a full list of country codes, please see the table below. This table lists the country codes standardised according to ISO 3166-1 alpha-2. You will find the codes associated with each country to facilitate your international logistics operations.
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Parcel shipping for business and private customers / How can I obtain the list of country codes?