| a------ | Asia |
| a-af--- | Afghanistan |
| a-ai--- | Armenia (Republic) |
| a-aj--- | Azerbaijan |
| a-ba--- | Bahrain |
| a-bg--- | Bangladesh |
| a-bn--- | Borneo |
| a-br--- | Burma |
| a-bt--- | Bhutan |
| a-bx--- | Brunei |
| a-cb--- | Cambodia |
| a-cc--- | China |
| a-cc-an | Anhui Sheng (China) |
| a-cc-ch | Zhejiang Sheng (China) |
| a-cc-cq | Chongqing (China) |
| a-cc-fu | Fujian Sheng (China) |
| a-cc-ha | Hainan Sheng (China) |
| a-cc-he | Heilongjiang Sheng (China) |
| a-cc-hh | Hubei Sheng (China) |
| a-cc-hk | Hong Kong (China : Special Administrative Region) |
| a-cc-ho | Henan Sheng (China) |
| a-cc-hp | Hebei Sheng (China) |
| a-cc-hu | Hunan Sheng (China) |
| a-cc-im | Inner Mongolia (China) |
| a-cc-ka | Gansu Sheng (China) |
| a-cc-kc | Guangxi Zhuangzu Zizhiqu (China) |
| a-cc-ki | Jiangxi Sheng (China) |
| a-cc-kn | Guangdong Sheng (China) |
| a-cc-kr | Jilin Sheng (China) |
| a-cc-ku | Jiangsu Sheng (China) |
| a-cc-kw | Guizhou Sheng (China) |
| a-cc-lp | Liaoning Sheng (China) |
| a-cc-mh | Macao (China : Special Administrative Region) |
| a-cc-nn | Ningxia Huizu Zizhiqu (China) |
| a-cc-pe | Beijing (China) |
| a-cc-sh | Shanxi Sheng (China) |
| a-cc-sm | Shanghai (China) |
| a-cc-sp | Shandong Sheng (China) |
| a-cc-ss | Shaanxi Sheng (China) |
| a-cc-su | Xinjiang Uygur Zizhiqu (China) |
| a-cc-sz | Sichuan Sheng (China) |
| a-cc-ti | Tibet (China) |
| a-cc-tn | Tianjin (China) |
| a-cc-ts | Qinghai Sheng (China) |
| a-cc-yu | Yunnan Sheng (China) |
| a-ccg-- | Yangtze River (China) |
| a-cck-- | Kunlun Mountains (China and India) |
| a-ccp-- | Bo Hai (China) |
| a-ccs-- | Xi River (China) |
| a-ccy-- | Yellow River (China) |
| a-ce--- | Sri Lanka |
| a-ch--- | Taiwan |
| a-cy--- | Cyprus |
| a-em--- | East Timor |
| a-gs--- | Georgia (Republic) |
| a-ii--- | India |
| a-io--- | Indonesia |
| a-iq--- | Iraq |
| a-ir--- | Iran |
| a-is--- | Israel |
| a-ja--- | Japan |
| a-jo--- | Jordan |
| a-kg--- | Kyrgyzstan |
| a-kn--- | Korea (North) |
| a-ko--- | Korea (South) |
| a-kr--- | Korea |
| a-ku--- | Kuwait |
| a-kz--- | Kazakhstan |
| a-le--- | Lebanon |
| a-ls--- | Laos |
| a-mk--- | Oman |
| a-mp--- | Mongolia |
| a-my--- | Malaysia |
| a-np--- | Nepal |
| a-nw--- | New Guinea |
| a-ph--- | Philippines |
| a-pk--- | Pakistan |
| a-pp--- | Papua New Guinea |
| a-qa--- | Qatar |
| a-si--- | Singapore |
| a-su--- | Saudi Arabia |
| a-sy--- | Syria |
| a-ta--- | Tajikistan |
| a-th--- | Thailand |
| a-tk--- | Turkmenistan |
| a-ts--- | United Arab Emirates |
| a-tu--- | Turkey |
| a-uz--- | Uzbekistan |
| a-vt--- | Vietnam |
| a-ye--- | Yemen |
| aa----- | Amur River (China and Russia) |
| ab----- | Bengal, Bay of |
| ac----- | Asia, Central |
| ae----- | East Asia |
| af----- | Thailand, Gulf of |
| ag----- | Mekong River |
| ah----- | Himalaya Mountains |
| ai----- | Indochina |
| ak----- | Caspian Sea |
| am----- | Malaya |
| an----- | East China Sea |
| ao----- | South China Sea |
| aopf--- | Paracel Islands |
| aoxp--- | Spratly Islands |
| ap----- | Persian Gulf |
| ar----- | Arabian Peninsula |
| as----- | Southeast Asia |
| at----- | Tien Shan |
| au----- | Arabian Sea |
| aw----- | Middle East |
| awba--- | West Bank |
| awgz--- | Gaza Strip |
| ay----- | Yellow Sea |
| az----- | South Asia |
| b------ | Commonwealth countries |
| c------ | Intercontinental areas (Western Hemisphere) |
| cc----- | Caribbean Area; Caribbean Sea |
| cl----- | Latin America |
| d------ | Developing countries |
| dd----- | Developed countries |
| e------ | Europe |
| e-aa--- | Albania |
| e-an--- | Andorra |
| e-au--- | Austria |
| e-be--- | Belgium |
| e-bn--- | Bosnia and Hercegovina |
| e-bu--- | Bulgaria |
| e-bw--- | Belarus |
| e-ci--- | Croatia |
| e-cs--- | Czechoslovakia |
| e-dk--- | Denmark |
| e-er--- | Estonia |
| e-fi--- | Finland |
| e-fr--- | France |
| e-ge--- | Germany (East) |
| e-gg--- | Guernsey |
| e-gi--- | Gibraltar |
| e-gr--- | Greece |
| e-gw--- | Germany (West) |
| e-gx--- | Germany |
| e-hu--- | Hungary |
| e-ic--- | Iceland |
| e-ie--- | Ireland |
| e-im--- | Isle of Man |
| e-it--- | Italy |
| e-je--- | Jersey |
| e-kv--- | Kosovo |
| e-lh--- | Liechtenstein |
| e-li--- | Lithuania |
| e-lu--- | Luxembourg |
| e-lv--- | Latvia |
| e-mc--- | Monaco |
| e-mm--- | Malta |
| e-mo--- | Montenegro |
| e-mv--- | Moldova |
| e-ne--- | Netherlands |
| e-no--- | Norway |
| e-pl--- | Poland |
| e-po--- | Portugal |
| e-rb--- | Serbia |
| e-rm--- | Romania |
| e-ru--- | Russia (Federation) |
| e-sm--- | San Marino |
| e-sp--- | Spain |
| e-sw--- | Sweden |
| e-sz--- | Switzerland |
| e-uk--- | Great Britain |
| e-uk-en | England |
| e-uk-ni | Northern Ireland |
| e-uk-st | Scotland |
| e-uk-wl | Wales |
| e-un--- | Ukraine |
| e-ur--- | Russia. Russian Empire. Soviet Union. Former Soviet republics |
| e-urc-- | Central Chernozem Region (Russia) |
| e-ure-- | Siberia, Eastern (Russia) |
| e-urf-- | Russian Far East (Russia) |
| e-urk-- | Caucasus |
| e-urn-- | Soviet Union, Northwestern |
| e-urp-- | Volga River (Russia) |
| e-urr-- | Caucasus, Northern (Russia) |
| e-urs-- | Siberia (Russia) |
| e-uru-- | Ural Mountains (Russia) |
| e-urw-- | Siberia, Western (Russia) |
| e-vc--- | Vatican City |
| e-xn--- | North Macedonia |
| e-xo--- | Slovakia |
| e-xr--- | Czech Republic |
| e-xv--- | Slovenia |
| e-yu--- | Yugoslavia |
| ea----- | Alps |
| eb----- | Baltic States |
| ec----- | Europe, Central |
| ed----- | Balkan Peninsula |
| ee----- | Europe, Eastern |
| el----- | Benelux countries |
| en----- | Europe, Northern |
| eo----- | Danube River |
| ep----- | Pyrenees |
| er----- | Rhine River |
| es----- | Europe, Southern |
| ev----- | Scandinavia |
| ew----- | Europe, Western |
| f------ | Africa |
| f-ae--- | Algeria |
| f-ao--- | Angola |
| f-bd--- | Burundi |
| f-bs--- | Botswana |
| f-cd--- | Chad |
| f-cf--- | Congo (Brazzaville) |
| f-cg--- | Congo (Democratic Republic) |
| f-cm--- | Cameroon |
| f-cx--- | Central African Republic |
| f-dm--- | Benin |
| f-ea--- | Eritrea |
| f-eg--- | Equatorial Guinea |
| f-et--- | Ethiopia |
| f-ft--- | Djibouti |
| f-gh--- | Ghana |
| f-gm--- | Gambia |
| f-go--- | Gabon |
| f-gv--- | Guinea |
| f-iv--- | Cote d'Ivoire |
| f-ke--- | Kenya |
| f-lb--- | Liberia |
| f-lo--- | Lesotho |
| f-ly--- | Libya |
| f-mg--- | Madagascar |
| f-ml--- | Mali |
| f-mr--- | Morocco |
| f-mu--- | Mauritania |
| f-mw--- | Malawi |
| f-mz--- | Mozambique |
| f-ng--- | Niger |
| f-nr--- | Nigeria |
| f-pg--- | Guinea-Bissau |
| f-rh--- | Zimbabwe |
| f-rw--- | Rwanda |
| f-sa--- | South Africa |
| f-sd--- | South Sudan |
| f-sf--- | Sao Tome and Principe |
| f-sg--- | Senegal |
| f-sh--- | Spanish North Africa |
| f-sj--- | Sudan |
| f-sl--- | Sierra Leone |
| f-so--- | Somalia |
| f-sq--- | Eswatini |
| f-ss--- | Western Sahara |
| f-sx--- | Namibia |
| f-tg--- | Togo |
| f-ti--- | Tunisia |
| f-tz--- | Tanzania |
| f-ua--- | Egypt |
| f-ug--- | Uganda |
| f-uv--- | Burkina Faso |
| f-za--- | Zambia |
| fa----- | Atlas Mountains |
| fb----- | Africa, Sub-Saharan |
| fc----- | Africa, Central |
| fd----- | Sahara |
| fe----- | Africa, Eastern |
| ff----- | Africa, North |
| fg----- | Congo River |
| fh----- | Africa, Northeast |
| fi----- | Niger River |
| fl----- | Nile River |
| fn----- | Sudan (Region) |
| fq----- | Africa, French-speaking Equatorial |
| fr----- | Great Rift Valley |
| fs----- | Africa, Southern |
| fu----- | Suez Canal (Egypt) |
| fv----- | Volta River (Ghana) |
| fw----- | Africa, West |
| fz----- | Zambezi River |
| h------ | French Community |
| i------ | Indian Ocean |
| i-bi--- | British Indian Ocean Territory |
| i-cq--- | Comoros |
| i-fs--- | Terres australes et antarctiques francaises |
| i-hm--- | Heard and McDonald Islands |
| i-mf--- | Mauritius |
| i-my--- | Mayotte |
| i-re--- | Reunion |
| i-se--- | Seychelles |
| i-xa--- | Christmas Island (Indian Ocean) |
| i-xb--- | Cocos (Keeling) Islands |
| i-xc--- | Maldives |
| i-xo--- | Socotra Island |
| l------ | Atlantic Ocean |
| ln----- | North Atlantic Ocean |
| lnaz--- | Azores |
| lnbm--- | Bermuda Islands |
| lnca--- | Canary Islands |
| lncv--- | Cape Verde |
| lnfa--- | Faroe Islands |
| lnjn--- | Jan Mayen Island |
| lnma--- | Madeira Islands |
| lnsb--- | Svalbard (Norway) |
| ls----- | South Atlantic Ocean |
| lsai--- | Ascension Island (Atlantic Ocean) |
| lsbv--- | Bouvet Island |
| lsfk--- | Falkland Islands |
| lstd--- | Tristan da Cunha |
| lsxj--- | Saint Helena |
| lsxs--- | South Georgia and the South Sandwich Islands |
| m------ | Intercontinental areas (Eastern hemisphere) |
| ma----- | Arab Countries |
| mb----- | Black Sea |
| me----- | Eurasia |
| mm----- | Mediterranean Region; Mediterranean Sea |
| mr----- | Red Sea |
| n------ | North America |
| n-cn--- | Canada |
| n-cn-ab | Alberta (Kanada : provinca) |
| n-cn-bc | British Columbia |
| n-cn-mb | Manitoba |
| n-cn-nf | Newfoundland and Labrador |
| n-cn-nk | New Brunswick |
| n-cn-ns | Nova Scotia |
| n-cn-nt | Northwest Territories |
| n-cn-nu | Nunavut |
| n-cn-on | Ontario |
| n-cn-pi | Prince Edward Island |
| n-cn-qu | Quebec (Province) |
| n-cn-sn | Saskatchewan |
| n-cn-yk | Yukon Territory |
| n-cnh-- | Hudson Bay |
| n-cnm-- | Maritime Provinces |
| n-cnp-- | Prairie Provinces |
| n-gl--- | Greenland |
| n-mx--- | Mexico |
| n-us--- | United States |
| n-us-ak | Alaska |
| n-us-al | Alabama |
| n-us-ar | Arkansas |
| n-us-az | Arizona |
| n-us-ca | California |
| n-us-co | Colorado |
| n-us-ct | Connecticut |
| n-us-dc | Washington (D.C.) |
| n-us-de | Delaware |
| n-us-fl | Florida |
| n-us-ga | Georgia |
| n-us-hi | Hawaii |
| n-us-ia | Iowa |
| n-us-id | Idaho |
| n-us-il | Illinois |
| n-us-in | Indiana |
| n-us-ks | Kansas |
| n-us-ky | Kentucky |
| n-us-la | Louisiana |
| n-us-ma | Massachusetts |
| n-us-md | Maryland |
| n-us-me | Maine |
| n-us-mi | Michigan |
| n-us-mn | Minnesota |
| n-us-mo | Missouri |
| n-us-ms | Mississippi |
| n-us-mt | Montana |
| n-us-nb | Nebraska |
| n-us-nc | North Carolina |
| n-us-nd | North Dakota |
| n-us-nh | New Hampshire |
| n-us-nj | New Jersey |
| n-us-nm | New Mexico |
| n-us-nv | Nevada |
| n-us-ny | New York |
| n-us-oh | Ohio |
| n-us-ok | Oklahoma |
| n-us-or | Oregon |
| n-us-pa | Pennsylvania |
| n-us-ri | Rhode Island |
| n-us-sc | South Carolina |
| n-us-sd | South Dakota |
| n-us-tn | Tennessee |
| n-us-tx | Texas |
| n-us-ut | Utah |
| n-us-va | Virginia |
| n-us-vt | Vermont |
| n-us-wa | Washington (State) |
| n-us-wi | Wisconsin |
| n-us-wv | West Virginia |
| n-us-wy | Wyoming |
| n-usa-- | Appalachian Mountains |
| n-usc-- | Middle West |
| n-use-- | Northeastern States |
| n-usl-- | Middle Atlantic States |
| n-usm-- | Mississippi River |
| n-usn-- | New England |
| n-uso-- | Ohio River |
| n-usp-- | West (U.S.) |
| n-usr-- | East (U.S.) |
| n-uss-- | Missouri River |
| n-ust-- | Southwest, New |
| n-usu-- | Southern States |
| n-xl--- | Saint Pierre and Miquelon |
| nc----- | Central America |
| ncbh--- | Belize |
| nccr--- | Costa Rica |
| nccz--- | Canal Zone |
| nces--- | El Salvador |
| ncgt--- | Guatemala |
| ncho--- | Honduras |
| ncnq--- | Nicaragua |
| ncpn--- | Panama |
| nl----- | Great Lakes; Lake States |
| nm----- | Mexico, Gulf of |
| np----- | Great Plains |
| nr----- | Rocky Mountains |
| nw----- | West Indies |
| nwaq--- | Antigua and Barbuda |
| nwaw--- | Aruba |
| nwbb--- | Barbados |
| nwbf--- | Bahamas |
| nwbn--- | Bonaire (Netherlands Antilles) |
| nwcj--- | Cayman Islands |
| nwco--- | Curacao (Netherlands Antilles) |
| nwcu--- | Cuba |
| nwdq--- | Dominica |
| nwdr--- | Dominican Republic |
| nweu--- | Saint Eustatius (Netherlands Antilles) |
| nwgd--- | Grenada |
| nwgp--- | Guadeloupe |
| nwhi--- | Hispaniola |
| nwht--- | Haiti |
| nwjm--- | Jamaica |
| nwla--- | Antilles, Lesser |
| nwli--- | Leeward Islands (West Indies) |
| nwmj--- | Montserrat |
| nwmq--- | Martinique |
| nwna--- | Netherlands Antilles |
| nwpr--- | Puerto Rico |
| nwsd--- | Saba (Netherlands Atilles) |
| nwst--- | Saint Martin |
| nwsv--- | Swan Islands (Honduras) |
| nwtc--- | Turks and Caicos Islands |
| nwtr--- | Trinidad and Tobago |
| nwuc--- | United States Miscellaneous Caribbean Islands |
| nwvb--- | British Virgin Islands |
| nwvi--- | Virgin Islands of the United States |
| nwwi--- | Windward Islands |
| nwxa--- | Anguilla |
| nwxi--- | Saint Kitts-Nevis |
| nwxk--- | Saint Lucia |
| nwxm--- | Saint Vincent and the Grenadines |
| p------ | Pacific Ocean |
| pn----- | North Pacific Ocean |
| po----- | Oceania |
| poas--- | American Samoa |
| pobp--- | Solomon Islands |
| poci--- | Caroline Islands |
| pocw--- | Cook Islands |
| poea--- | Easter Island |
| pofj--- | Fiji |
| pofp--- | French Polynesia |
| pogg--- | Galapagos Islands |
| pogu--- | Guam |
| poji--- | Johnston Island |
| pokb--- | Kiribati |
| poki--- | Kermadec Islands |
| poln--- | Line Islands |
| pome--- | Melanesia |
| pomi--- | Micronesia (Federated States) |
| ponl--- | New Caledonia |
| ponn--- | Vanuatu |
| ponu--- | Nauru |
| popc--- | Pitcairn Island |
| popl--- | Palau |
| pops--- | Polynesia |
| posh--- | Samoan Islands |
| potl--- | Tokelau |
| poto--- | Tonga |
| pott--- | Micronesia |
| potv--- | Tuvalu |
| poup--- | United States Miscellaneous Pacific Islands |
| powf--- | Wallis and Futuna Islands |
| powk--- | Wake Island |
| pows--- | Samoa |
| poxd--- | Mariana Islands |
| poxe--- | Marshall Islands |
| poxf--- | Midway Islands |
| poxh--- | Niue |
| ps----- | South Pacific Ocean |
| q------ | Cold regions |
| r------ | Arctic Ocean; Arctic regions |
| s------ | South America |
| s-ag--- | Argentina |
| s-bl--- | Brazil |
| s-bo--- | Bolivia |
| s-ck--- | Colombia |
| s-cl--- | Chile |
| s-ec--- | Ecuador |
| s-fg--- | French Guiana |
| s-gy--- | Guyana |
| s-pe--- | Peru |
| s-py--- | Paraguay |
| s-sr--- | Suriname |
| s-uy--- | Uruguay |
| s-ve--- | Venezuela |
| sa----- | Amazon River |
| sn----- | Andes |
| sp----- | Rio de la Plata (Argentina and Uruguay) |
| t------ | Antarctic Ocean; Antarctica |
| u------ | Australasia |
| u-ac--- | Ashmore and Cartier Islands |
| u-at--- | Australia |
| u-at-ac | Australian Capital Territory |
| u-at-ne | New South Wales |
| u-at-no | Northern Territory |
| u-at-qn | Queensland |
| u-at-sa | South Autralia |
| u-at-tm | Tasmania |
| u-at-vi | Victoria |
| u-at-we | Western Australia |
| u-atc-- | Central Australia |
| u-ate-- | Eastern Australia |
| u-atn-- | Northern Australia |
| u-cs--- | Coral Sea Islands |
| u-nz--- | New Zealand |
| w------ | Tropics |
| x------ | Earth |
| xa----- | Eastern Hemisphere |
| xb----- | Northern Hemisphere |
| xc----- | Southern Hemisphere |
| xd----- | Western Hemisphere |
| zd----- | Deep space |
| zju---- | Jupiter |
| zma---- | Mars |
| zme---- | Mercury |
| zmo---- | Moon |
| zne---- | Neptune |
| zo----- | Outer space |
| zpl---- | Pluto |
| zs----- | Solar system |
| zsa---- | Saturn |
| zsu---- | Sun |
| zur---- | Uranus |
| zve---- | Venus |