Code Value Notes
Alpha-2 GU Alpha-2 code from ISO 3166-1
Alpha-3 GUM Alpha-3 code from ISO 3166-1
Numeric 316 Numeric code from ISO 3166-1
ITU GUM Codes assigned by the International Telecommunications Union
FIPS GQ Codes from the U.S. standard FIPS PUB 10-4
IOC GUM Codes assigned by the International Olympics Committee
FIFA GUM Codes assigned by the Fédération Internationale de Football Association
DS USA Distinguishing signs of vehicles in international traffic
WMO GM Country abbreviations used in weather reports from the World Meteorological Organization
GAUL 101 Global Administrative Unit Layers from the Food and Agriculture Organization
MARC gu MAchine-Readable Cataloging codes from the Library of Congress
DIAL 1-671 Country code from ITU-T recommendation E.164 (international dialing code)
TLD .gu Country code Top Level Domain