Code Value Notes
Alpha-2 SD Alpha-2 code from ISO 3166-1
Alpha-3 SDN Alpha-3 code from ISO 3166-1
Numeric 729 Numeric code from ISO 3166-1
ITU SDN Codes assigned by the International Telecommunications Union
FIPS SU Codes from the U.S. standard FIPS PUB 10-4
IOC SUD Codes assigned by the International Olympics Committee
FIFA SUD Codes assigned by the Fédération Internationale de Football Association
DS SUD Distinguishing signs of vehicles in international traffic
WMO SU Country abbreviations used in weather reports from the World Meteorological Organization
GAUL 40764 Global Administrative Unit Layers from the Food and Agriculture Organization
MARC sj MAchine-Readable Cataloging codes from the Library of Congress
DIAL 249 Country code from ITU-T recommendation E.164 (international dialing code)
TLD .sd Country code Top Level Domain