 |
| Nauru (Australia) |
|
 |
| New Guinea (Australia) |
|
| |
| Norfolk Island (Australia) |
|
 |
| Papua (Australia) |
|
 |
| Belgian Congo (Belgium) |
|
 |
| Ruanda-Urundi (Belgium) |
|
| |
| Tientsin (Belgium) |
|
 |
| Anglo-Egyptian Sudan (Egypt and United Kingdom) |
|
 |
| Åland (until 1921; Finland) |
|
 |
| Åland (from 1921; Finland) |
|
 |
| Alawite State (France) |
|
 |
| French Algeria (France) |
|
| |
| French Cameroon (France) |
|
| |
| French Chad (France) |
|
| |
| French Equatorial Africa (France) |
|
| |
| French Guiana (France) |
|
| |
| French India (France) |
|
| |
| French Indochina (France) |
|
| |
| French Madagascar (France) |
|
 |
| French Morocco (France) |
|
| |
| French Polynesia (France) |
|
| |
| French Somaliland (France) |
|
| |
| French Togoland (France) |
|
 |
| French Tunisia (France) |
|
| |
| French West Africa (France) |
|
 |
| Gambier Islands (France) |
|
| |
| Guadeloupe (France) |
|
| |
| Hankou (France) |
|
| |
| Martinique (France) |
|
| |
| New Caledonia (France) |
|
| |
| New Hebrides (France) |
|
| |
| Réunion (France) |
|
| |
| Saint Pierre and Miquelon (France) |
|
| |
| Shanghai (France) |
|
| |
| Tientsin (France) |
|
| |
| Ubangi-Shari (France) |
|
 |
| Wallis and Futuna (France) |
|
 |
| Greater Lebanon (France) |
|
 |
| Jabal Druze State (from 1 May; France) |
|
 |
| Saar Basin (France) |
|
 |
| Amoy (Italy) |
|
| |
| Italian Cyrenaica (Italy) |
|
| |
| Italian Eritrea (Italy) |
|
| |
| Italian Somaliland (Italy) |
|
| |
| Italian Tripolitania (Italy) |
|
| |
| Shanghai (Italy) |
|
| |
| Tientsin (Italy) |
|
 |
| Chongqing (Japan) |
|
| |
| Hangzhou (Japan) |
|
| |
| Hankou (Japan) |
|
| |
| Japanese Korea (Chōsen) (Japan) |
|
| |
| Karafuto (Japan) |
|
| |
| Kwantung (Japan) |
|
| |
| Shashi (Japan) |
|
| |
| South Seas Mandate (Japan) |
|
| |
| Suzhou (Japan) |
|
| |
| Taiwan (Japan) |
|
| |
| Tientsin (Japan) |
|
 |
| Curaçao and Dependencies (Netherlands) |
|
| |
| Dutch East Indies (Netherlands) |
|
| |
| Surinam (Netherlands) |
|
 |
| Cook Islands (New Zealand) |
|
| |
| Niue (New Zealand) |
|
 |
| Western Samoa (New Zealand) |
|
 |
| Sverdrup Islands (Norway) |
|
 |
| Portuguese Cape Verde (Portugal) |
|
| |
| Portuguese Macau (Portugal) |
|
| |
| Portuguese East Africa (Portugal) |
|
| |
| Portuguese Guinea (Portugal) |
|
| |
| Portuguese India (Portugal) |
|
| |
| Portuguese Timor (Portugal) |
|
| |
| Portuguese West Africa (Portugal) |
|
| |
| Fort of São João Baptista de Ajudá (Portugal) |
|
| |
| Portuguese São Tomé and Príncipe (Portugal) |
|
 |
| Uryankhay (until 14 August; Russia) |
|
 |
| South West Africa (South Africa) |
|
 |
| Elobey, Annobón, and Corisco (Spain) |
|
| |
| Fernando Poo (Spain) |
|
| |
| Río Muni (Spain) |
|
| |
| Spanish North Africa (Spain) |
|
| |
| Spanish Sahara (Spain) |
|
 |
| Spanish Morocco (Spain) |
|
 |
| Aden (United Kingdom) |
|
| |
| Amoy (United Kingdom) |
|
| |
| Ascension Island (United Kingdom) |
|
 |
| Bahamas (United Kingdom) |
|
 |
| Bahrain (United Kingdom) |
|
| |
| Baker Island (United Kingdom) |
|
 |
| Barbados (United Kingdom) |
|
| |
| Basutoland (United Kingdom) |
|
| |
| Bechuanaland (United Kingdom) |
|
 |
| Bermuda (United Kingdom) |
|
 |
| Bhutan (United Kingdom) |
|
| |
| British Cameroon (United Kingdom) |
|
 |
| British Guiana (United Kingdom) |
|
 |
| British Honduras (United Kingdom) |
|
 |
| British Leeward Islands (United Kingdom) |
|
 |
| British Somaliland (United Kingdom) |
|
| |
| British Togoland (United Kingdom) |
|
| |
| British Western Pacific Territories (United Kingdom) |
|
 |
| British Windward Islands (United Kingdom) |
|
 |
| Brunei (United Kingdom) |
|
 |
| Ceylon (United Kingdom) |
|
 |
| Cyprus (United Kingdom) |
|
 |
| Egypt (United Kingdom) |
|
 |
| Falkland Islands (United Kingdom) |
|
 |
| Federated Malay States (United Kingdom) |
|
 |
| Fiji (United Kingdom) |
|
 |
| Gambia (United Kingdom) |
|
 |
| Gibraltar (United Kingdom) |
|
 |
| Gold Coast (United Kingdom) |
|
 |
| Guernsey (United Kingdom) |
|
| |
| Hankou (United Kingdom) |
|
| |
| Heard Island and McDonald Islands (United Kingdom) |
|
 |
| British Hong Kong (United Kingdom) |
|
 |
| British India (United Kingdom) |
|
 |
| Iraq (from 23 August; United Kingdom) |
|
 |
| Isle of Man (United Kingdom) |
|
 |
| Jamaica (United Kingdom) |
|
 |
| Kenya (United Kingdom) |
|
| |
| Jarvis Island (United Kingdom) |
|
 |
| Jersey (United Kingdom) |
|
| |
| Jiujiang (United Kingdom) |
|
 |
| Johor (United Kingdom) |
|
 |
| Kedah (United Kingdom) |
|
 |
| Kelantan (United Kingdom) |
|
 |
| Kuwait (until mid-1921; United Kingdom) |
|
 |
| Kuwait (from mid-1921; I United Kingdom) |
|
 |
| Maldives (United Kingdom) |
|
 |
| Malta (United Kingdom) |
|
 |
| Mauritius (United Kingdom) |
|
 |
| Nepal (United Kingdom) |
|
 |
| Nigeria (United Kingdom) |
|
 |
| North Borneo (United Kingdom) |
|
 |
| Northern Rhodesia (United Kingdom) |
|
 |
| Nyasaland (United Kingdom) |
|
| |
| Palestine (United Kingdom) |
|
 |
| Perlis (United Kingdom) |
|
 |
| Qatar (United Kingdom) |
|
| |
| Saar Basin (United Kingdom) |
|
 |
| Saint Helena (United Kingdom) |
|
 |
| Sarawak (United Kingdom) |
|
 |
| Seychelles (United Kingdom) |
|
 |
| Sierra Leone (United Kingdom) |
|
 |
| Sikkim (United Kingdom) |
|
| |
| South Orkney Islands (United Kingdom) |
|
| |
| Southern Rhodesia (United Kingdom) |
|
| |
| South Shetland Islands (United Kingdom) |
|
 |
| Straits Settlements (United Kingdom) |
|
| |
| Swaziland (United Kingdom) |
|
 |
| Tanganyika (United Kingdom) |
|
| |
| Tientsin (United Kingdom) |
|
 |
| Terengganu (United Kingdom) |
|
 |
| Transjordan (from 11 April; United Kingdom) |
|
 |
| Trinidad and Tobago (United Kingdom) |
|
| |
| Tristan da Cunha (United Kingdom) |
|
 |
| Trucial States (United Kingdom) |
|
 |
| Uganda (United Kingdom) |
|
| |
| Union Islands (United Kingdom) |
|
| |
| Victoria Land (United Kingdom) |
|
 |
| Weihaiwei (United Kingdom) |
|
 |
| Zanzibar (United Kingdom) |
|
| |
| Zhenjiang (United Kingdom) |
|
 |
| Alaska (United States) |
|
| |
| American Samoa (United States) |
|
| |
| Corn Islands (United States) |
|
| |
| Guam (United States) |
|
 |
| Hawaii (United States) |
|
| |
| Howland Island (United States) |
|
| |
| Johnston Atoll (United States) |
|
| |
| Kingman Reef (United States) |
|
| |
| Midway Atoll (United States) |
|
| |
| Navassa Island (United States) |
|
 |
| Panama Canal Zone (United States) |
|
| |
| Petrel Islands (United States) |
|
 |
| Philippine Islands (United States) |
|
| |
| Puerto Rico (United States) |
|
| |
| Quita Sueno Bank (United States) |
|
| |
| Roncador Bank (United States) |
|
| |
| Serrana Bank (United States) |
|
| |
| Serranilla Bank (United States) |
|
| |
| Swan Islands (United States) |
|
| |
| United States Virgin Islands (until 17 May; United States) |
|
 |
| United States Virgin Islands (from 17 May; United States) |
|
