. ISO 3166 includes two- and three-character alphabetic
codes and three-digit numeric codes that may be needed for activities
involving exchange of data with international organizations that have
adopted that standard. Except for the numeric codes, ISO 3166 codes
have been adopted in the US as FIPS 104-1: American National Standard
Codes for the Representation of Names of Countries, Dependencies, and
Areas of Special Sovereignty for Information Interchange.

Internet: The Internet country code is the two-letter digraph
maintained by the International Organization for Standardization (ISO)
in the ISO 3166 Alpha-2 list and used by the Internet Assigned Numbers
Authority (IANA) to establish country-coded top-level domains (ccTLDs).

Entity FIPS 10-4 --- ISO 3166 -- Internet Comment

Afghanistan AF AF AFG 004 .af
Albania AL AL ALB 008 .al
Algeria AG DZ DZA 012 .dz
American Samoa AQ AS ASM 016 .as
Andorra AN AD AND 020 .ad
Angola AO AO AGO 024 .ao
Anguilla AV AI AIA 660 .ai
Antarctica AY AQ ATA 010 .aq
ISO defines as the territory south of 60 degrees south latitude

Antigua and Barbuda AC AG ATG 028 .ag
Argentina AR AR ARG 032 .ar
Armenia AM AM ARM 051 .am
Aruba AA AW ABW 533 .aw
Ashmore and
Cartier Islands AT - - - -
ISO includes with Australia

Australia AS AU AUS 036 .au
ISO includes Ashmore and Cartier Islands, Coral Sea Islands

Austria AU AT AUT 040 .at
Azerbaijan AJ AZ AZE 031 .az
Bahamas, The BF BS BHS 044 .bs
Bahrain BA BH BHR 048 .bh
Baker Island FQ - - - -
ISO includes with the US Minor Outlying Islands

Bangladesh BG BD BGD 050 .bd
Barbados BB BB BRB 052 .bb
Bassas da India BS - - - -
ISO includes with the Miscellaneous(French) Indian Ocean Islands

Belarus BO BY BLR 112 .by
Belgium BE BE BEL 056 .be
Belize BH BZ BLZ 084 .b