Country Code Numbers for the Decimal File System:
Years 1910–1949
| Code Number | Country or Region | Code Number | Country or Region | |
|---|---|---|---|---|
| 00 | General Correspondence | 51t | French West Africa and the Sahara | |
| 10 | America Pan-America | 51u | French Equatorial Africa | |
| 11 | United States | 51v | French Somali Coast and dependencies | |
| 11a | Hawaiian, Kuré, and Palmyra Islands | 51w | Madagascar | |
| 11b | Philippine Islands | 51x | other African islands | |
| 11c | Puerto Rico | 52 | Spain | |
| 11d | Guam | 52a | Canary Islands | |
| 11e | American Samoa | 52b | Spanish possessions in Africa | |
| 11f | Panama Canal Zone | 52c | Rio de Oro and Adrar | |
| 12 | Mexico | 52d | Rio Muni and Cape San Juan | |
| 13 | Central American | 52e | Equitorial Guinea | |
| 14 | Guatemala | 52f | Spanish Territories in North Africa | |
| 15 | Honduras | 52g | Balearic Islands | |
| 16 | El Salvador | 53 | Portugal | |
| 17 | Nicaragua | 53a | Madeira | |
| 18 | Costa Rica | 53b | Azores | |
| 19 | Panama | 53d | Portuguese India | |
| 20 | South America (west coast) | 53e | Macao | |
| 21 | Columbia | 53f | Timor | |
| 22 | Ecuador | 53h | Cape Verde Islands | |
| 23 | Peru | 53i | Portuguese Guinea | |
| 24 | Bolivia | 53k | São Tomé and Principe | |
| 25 | Chile | 53L | Landana and Cabinda | |
| 30 | South America (east coast) | 53m | Angola | |
| 31 | Venezuela | 53n | Portuguese East Africa | |
| 32 | Brazil | 53p | Lourenco Marquez | |
| 33 | Uruguay | 53q | Mozambique | |
| 34 | Paraguay | 54 | Switzerland | |
| 35 | Argentina | 55 | Belgium | |
| 36 | West Indian Republics | 55a | Belgian Congo | |
| 37 | Cuba | 56 | Netherlands | |
| 38 | Haiti | 56a | Surinam | |
| 39 | Dominican Republic | 56b | Netherlands (Dutch) West Indies | |
| 40 | Europe | 56d | Netherland Indies | |
| 41 | United Kingdom | 56e | Java and Madura | |
| 41a | England | 56f | Sumatra | |
| 41b | Scotland | 56g | Borneo | |
| 41c | Wales | 56h | Celebes | |
| 41d | Ireland (Irish Free State, Eire) | 56i | miscellaneous islands | |
| 41e | Northern Island | 57 | Norway | |
| 42 | Canada | 57d | Scandinavia | |
| 42a | Nova Scotia | 57h | Spitsbergen | |
| 42b | New Brunswick | 58 | Sweden | |
| 42c | Prince Edward Island | 59 | Denmark | |
| 42d | Quebec | 59a | Iceland | |
| 42e | Ontario | 59b | Greenland | |
| 42f | Manitoba | 59d | Danish West Indies | |
| 42g | Alberta | 59e | Faroe | |
| 42h | British Columbia | 60 | Eastern Continental Europe | |
| 42i | Yukon | 60a | San Marino | |
| 42j | Saskatchewan | 60b | Liechtenstein | |
| 42k | Northwest Territories | 60c | Poland | |
| 43 | Newfoundland | 60d | Finland | |
| 43a | Labrador | 60e | Ukraine | |
| 44 | British colonies in America | 60f | Czechoslovakia | |
| 44a | British Honduras | 60g | Georgia | |
| 44b | British Guiana | 60h | Yugoslavia | |
| 44c | British West Indies | 60i | Estonia | |
| 44d | Jamaica, Turks and Caicos Islands, Morant Cays, and Pedro Cays | 60j | Armenia | |
| 44e | Bahamas | 60k | Free City of Danzig | |
| 44f | Barbados | 60m | Lithuania | |
| 44g | Trinidad and Tobago | 60n | Baltic States | |
| 44h | Bermudas | 60p | Latvia | |
| 44i | Windward Islands | 60q | Fiume | |
| 44k | Leeward Island | 60r | Transcaucasia-Vitanvalia | |
| 44l | Falkland Islands | 60s | Trieste | |
| 44m | South Orkney Islands | 61 | Union of Soviet Socialist Republics | |
| 45 | India | 61a | Siberia | |
| 45a | Andaman and Nicobar Islands | 61b | Sakhalin Island (Russian portion) | |
| 45b | Laccadive Islands | 62 | Germany | |
| 45c | Burma | 62a | Kiauchau | |
| 45d | Bhutan | 62c | German Pacific colonies and dependencies | |
| 45e | Nepal | 62d | New Guinea | |
| 45f | Pakistan | 62e | Kaiser Wilhelm’s Land | |
| 46 | British Asia (except Indian) and Pacific Islands | 62f | Bismarck Archipelago | |
| 46a | Aden Colony and Protectorate | 62g | Solomon Islands | |
| 46b | Bahrein Islands | 62h | Marshall Islands | |
| 46c | Ceylon | 62i | Caroline Islands | |
| 46d | Straits Settlements including Christmas Island | 62k | Palau Islands | |
| 46e | Malay States | 62L | Marianne Islands, Western Samoa | |
| 46g | Hong Kong | 62p | Togoland | |
| 46h | Weihaiwai | 62q | Cameroon | |
| 46i | British Borneo | 62r | German Southwest Africa | |
| 46k | Fiji | 62s | German East Africa | |
| 46l | Papua | 62t | Rhineland | |
| 46m | Pacific Islands | 62u | Saar Basin | |
| 47A | New South Wales | 63 | Austria | |
| 47B | Victoria | 64 | Hungary | |
| 47C | South Australia | 65 | Italy | |
| 47D | Queensland | 65a | Eritrea | |
| 47E | Tasmania | 65b | Somaliland | |
| 47F | Western Australia | 65c | Libya | |
| 47G | Northern Territory | 65d | Italian East Africa | |
| 47I | Norfolk Island | 66 | Papal States | |
| 47h | New Zealand | 66a | Vatican City | |
| 48 | British Africa | 67 | Turkey | |
| 48a | British South Africa | 67a | Turkey in Europe | |
| 48B | Cape of Good Hope | 67k | Crete | |
| 48C | Transvaal | 67L | Samos | |
| 48D | Orange Free State | 67m | Turkey in Asia | |
| 48E | Union of South Africa | 67n | Palestine | |
| 48f | Rhodesia | 67t | Tripoli and Barca | |
| 48g | Basutoland | 68 | Greece | |
| 48h | Bechuanaland | 68c | Crete | |
| 48i | Swaziland | 68d | Samos | |
| 48k | British West Africa | 70 | Balkan States | |
| 48L | Northern Nigeria | 71 | Romania | |
| 48M | Gold Coast | 71a | Bessarabia | |
| 48P | Sierra Leone | 72 | Serbia | |
| 48R | Gambia | 73 | Montenegro | |
| 48t | Kenya | 74 | Bulgaria | |
| 48U | Uganda | 75 | Albania | |
| 48V | Zanzibar | 80 | Africa | |
| 48x | Somaliland | 81 | Morocco | |
| 48y | Nyasaland | 82 | Liberia | |
| 48z | Anglo-Egyptian Sudan | 83 | Egypt | |
| 49 | British Mediterranean colonies and islands off the coast of Africa | 84 | Ethiopia | |
| 49a | Gibralter | 90 | Asia | |
| 49b | Malta | 91a | Oman | |
| 49c | Cyprus | 92b | Arabia | |
| 49d | St Helena and dependencies | 90c | Azerbaijan | |
| 49e | Tristan da Cunha | 90d | Syria | |
| 49f | Ascension Island | 90e | Lebanon | |
| 49g | Seychelles | 90f | Saudi Arabia, Kingdom of | |
| 49h | Mauritius | 90g | Iraq | |
| 50 | Western Continental Europe | 90h | Afghanistan | |
| 50a | Luxembourg | 90i | Trans-Jordan | |
| 50b | Monaco | 90j | Yemen | |
| 50c | Andorra | 91 | Iran | |
| 50d | Spitsbergen (Spitzbergen) | 92 | Thailand | |
| 51 | France | 93 | China | |
| 51a | St Pierre and Miquelon | 94 | Japan | |
| 51b | Martinique | 94a | Taiwan | |
| 51c | French West Indies | 94b | Sakhalin Island (Japanese portion) | |
| 51d | French Guiana | 94c | Kwantung | |
| 51f | French India | 95 | Korea | |
| 51g | French Indo-China | |||
| 51k | French possessions and protectorates in Oceania and the Eastern Pacific | |||
| 51l | New Calendonia | |||
| 51m | Society Islands | |||
| 51n | French Polynesia excluding Society Islands | |||
| 51p | New Hebrides | |||
| 51r | Algeria | |||
| 51s | Tunis |
Country Code Numbers for the Decimal File System:
Years 1950–1959
| Code Number | Country or Region | Code Number | Country or Region | |
|---|---|---|---|---|
| 00 | General Correspondence | 51x | Madagascar | |
| 01 | Outer Space (Aerosphere)- Satellites | 52 | Spain | |
| 02 | Antarctic | 52a | Canary Islands | |
| 03 | Arctic | 52b | Spanish possession in Africa | |
| 10 | Western Hemisphere | 52e | Fernando Po, Annobon, Corisco, and Elobey Islands | |
| 11 | United States | 52f | Spanish Territories in North Africa | |
| 11a | Hawaiian, Kuré, and Palmyra Islands | 52g | Balearic Islands | |
| 11b | U.S. Possessions in the Pacific Ocean | 53 | Portugal | |
| 11c | Puerto Rico | 53a | Madeira | |
| 11d | Guam | 53b | Azores | |
| 11e | American Samoa | 53c | Mozambique | |
| 11f | Panama Canal Zone | 53d | Portuguese India | |
| 11g | U.S. Virgin Islands | 53e | Macao | |
| 12 | Mexico | 53f | Timor | |
| 13 | Central America | 53g | Cape Verde Islands | |
| 14 | Guatemala | 53h | Portuguese Guinea | |
| 15 | Honduras | 53k | São Tomé and Principe | |
| 16 | El Salvador | 53m | Landana and Cabinda | |
| 17 | Nicaragua | 53n | Angola | |
| 18 | Costa Rica | 53p | Portuguese East Africa | |
| 19 | Panama | 54 | Switzerland | |
| 20 | South and Central America | 55 | Belgium | |
| 21 | Columbia | 55a | Surinam | |
| 22 | Ecuador | 56 | Netherlands | |
| 23 | Peru | 56a | Surinam | |
| 24 | Bolivia | 56b | Netherlands (Dutch) West Indies | |
| 25 | Chile | 56e | Java and Madura | |
| 31 | Venezuela | 56f | Sumatra | |
| 32 | Brasil | 56g | Borneo | |
| 33 | Uruguay | 56h | Celebes | |
| 34 | Paraguay | 57 | Norway | |
| 36 | West Indian Republics | 57a | Scandinavia | |
| 37 | Cuba | 57b | Spitsbergen | |
| 38 | Haiti | 57c | Lapland | |
| 39 | Dominican Republic | 58 | Sweden | |
| 40 | Europe | 59 | Denmark | |
| 40a | Ireland (Eire) (Irish Free State) | 59a | Greenland | |
| 40b | Iceland | 59b | Faroe | |
| 41 | United Kingdom | 60 | Eastern Continental Europe | |
| 41a | Northern Ireland | 60a | Baltic States | |
| 41b | British possessions in the Western hemisphere except Canada | 60b | Esthonia | |
| 41c | British Honduras | 60c | Latvia | |
| 41d | British Guiana | 60d | Lithuania | |
| 41e | British West Indies | 60e | Finland | |
| 41f | Bahamas | 61 | Union of Soviet Socialist Republics | |
| 41g | Barbados | 61a | Bessarabia | |
| 41h | Jamaica, Turks and Caicos Islands, Cayman Islands, Morant Cays, and Pedro Cays | 61b | Ukraine | |
| 41k | Leeward Islands | 61c | Sakhalin Islands (Russian portion) | |
| 41m | Trinidad and Tobago | 62 | Germany | |
| 41n | Windward Islands (Grenada, St. Vincent, Grenadines, St. Lucia, Dominica) | 62a | Federal Republic of Germany | |
| 41p | Bermuda | 62b | Russian Zone (East Germany) | |
| 41r | Falkland Islands | 62c | Polish Administration | |
| 41s | South Georgia, South Sandwich and South Orkney Islands | 63 | Austria | |
| 41t | South Shetland Islands | 64 | Hungary | |
| 42 | Canada | 65 | Italy | |
| 43 | Australia | 65a | Vatican City | |
| 44 | New Zealand | 66 | Romania | |
| 45 | British territories in Africa | 67 | Albania | |
| 45a | Union of South Africa | 68 | Yugoslavia | |
| 45b | British South Africa | 69 | Bulgaria | |
| 45c | Rhodesia | 70 | Africa | |
| 45d | Basutoland | 70a | Mediterranean Countries | |
| 45e | Bechuanaland | 71 | Morocco | |
| 45f | Swaziland | 71a | French Zone | |
| 45g | British West Africa | 71b | Spanish Zone | |
| 45h | Nigeria | 72 | Tunisia | |
| 45k | Gold Coast, British Togoland | 73 | Libya | |
| 45m | Sierra Leone | 74 | Egypt | |
| 45n | Gambia | 75 | Ethiopia | |
| 45p | British East Africa | 75a | Eritrea | |
| 45r | Kenya Colony | 76 | Liberia | |
| 45s | Uganda | 77 | Italian Colonies in East Africa | |
| 45t | Zanzibar | 78 | Tanganyika Territory | |
| 45u | Somaliland | 80 | Near East | |
| 45w | Anglo-Egyptian Sudan | 81 | Greece | |
| 45x | British Southwest Africa | 81a | Crete | |
| 46 | British territories in Asia | 81b | Samos | |
| 46a | Andaman and Nicobar Islands | 83 | Turkey | |
| 46b | Laccadive Islands | 83a | Syria | |
| 46c | Aden Colony and Protectorate | 84 | Lebano | |
| 46d | Bahrein Islands | 84a | Palestine | |
| 46e | Ceylon | 85 | Israel | |
| 46f | Singapore including Keeling Islands and Christmas Island | 86 | Jordan | |
| 46g | Hong Kong | 86a | Arabia | |
| 46h | British Borneo | 86b | Saudi Arabia | |
| 46j | Republic of the Maldive Islands | 86c | Hadhramaut | |
| 46k | Fiji | 86d | Kuwait | |
| 46m | Papua | 86e | Muscat and Oman | |
| 46n | Pacific Islands | 86f | Qatar | |
| 47 | British territories in Mediterranean | 86g | Trucial Sheikhs | |
| 47a | Gibraltar | 86h | Yeman | |
| 47b | Malta | 87 | Iraq | |
| 47c | Cyprus | 88 | Iran | |
| 47d | St. Helena and dependencies | 89 | Afghanistan | |
| 47e | Tristan da Cunha | 90 | Far East | |
| 47f | Ascension Island | 90a | Bhutan | |
| 47g | Seychelles | 90b | Burma | |
| 47h | Mauritius | 90c | Nepal | |
| 48 | Poland | 90d | Pakistan | |
| 49 | Czechoslovakia | 91 | India | |
| 50 | Western Continental Europe | 92 | Thailand | |
| 50a | Luxembourg | 93 | China | |
| 50b | Monaco | 93a | Manchuria | |
| 50c | Andorra | 93b | Tibet | |
| 50d | San Marino | 94 | Japan | |
| 50f | Liechtenstein | 94a | Taiwan | |
| 50g | Free Territory of Trisete | 94b | Sakhalin Island (Japanese portion) | |
| 51 | France (including Corsica) | 94c | Ryukyu Islands and Nampo Island | |
| 51a | St. Pierre and Miquelon | 95 | Korea | |
| 51b | Martinique | 95a | North Korea | |
| 51c | French West Indies | 95b | South Korea | |
| 51d | French Guiana | 96 | Philippines | |
| 51e | French colonies in America | 97 | State of Malaya | |
| 51f | French India | 99 | New Guinea | |
| 51g | French Indo-China | |||
| 51h | Cambodia | |||
| 51j | Laos | |||
| 51k | French possessions and protectorates in Oceania and the Eastern Pacific | |||
| 51m | Society Islands | |||
| 51n | Society Islands | |||
| 51p | French Polynesia excluding Society Islands | |||
| 51r | New Hebrides | |||
| 51s | Algeria | |||
| 51t | French West Africa and the Sahara | |||
| 51u | French Equatorial Africa | |||
| 51v | French Somali Coast and dependencies | |||
| 51w | Madagascar |
Country Code Numbers for the Decimal File System:
Years 1960–1963
| Code Number | Country or Region | Code Number | Country or Region | |
|---|---|---|---|---|
| 00 | General Correspondence | 51v | French Somali Coast and dependencies | |
| 01 | Outer Space (Aerosphere) Satellites | 51w | Madagascar | |
| 02 | Antarctic | 51x | Other African Islands | |
| 03 | Arctic | 51y | French possessions and protectorates in Oceania and Eastern Pacific | |
| 10 | Western Hemisphere | 52 | Spain | |
| 11 | United States | 52a | Canary Islands | |
| 11a | Hawaiian, Kuré, and Palmyra Islands | 52b | Spanish possession in Africa | |
| 11b | U.S. Possessions in the Pacific Ocean | 52c | Rio de Oro and Adrar | |
| 11c | Puerto Rico | 52d | Rio Muni and Cape San Juan | |
| 11d | Guam | 52e | Equitorial Guinea | |
| 11e | American Samoa | 52f | Spanish Territories in North Africa | |
| 11f | Panama Canal Zone | 52g | Balearic Islands | |
| 11g | U.S. Virgin Islands | 53 | Portugal | |
| 11h | Wake Island | 53a | Madeira | |
| 12 | Mexico | 53b | Azores | |
| 13 | Central America | 53c | Mozambique | |
| 14 | Guatemala | 53d | Portuguese India | |
| 15 | Honduras | 53e | Macao | |
| 16 | El Salvador | 53f | Timor | |
| 17 | Nicaragua | 53g | Cape Verde Islands | |
| 18 | Costa Rica | 53h | Portuguese Guinea | |
| 19 | Panama | 53k | São Tomé and Principe | |
| 20 | South and Central America | 53m | Landana and Cabinda | |
| 21 | Colombia | 53n | Angola | |
| 22 | Ecuador | 53p | Portuguese East Africa | |
| 23 | Peru | 54 | Switzerland | |
| 24 | Bolivia | 55 | Belgium | |
| 25 | Chile | 55a | Belgian Congo | |
| 31 | Venezuela | 56 | Netherlands | |
| 32 | Brasil | 56a | Surinam | |
| 33 | Uruguay | 56b | Netherlands (Dutch) West Indies | |
| 34 | Paraguay | 56c | Miscellaneous Islands | |
| 36 | West Indian Republic | 57 | Norway | |
| 37 | Cuba | 57a | Scandinavia | |
| 38 | Haiti | 57b | Spitsbergen | |
| 39 | Dominican Republic | 57c | Lapland | |
| 40 | Europe | 58 | Sweden | |
| 40a | Ireland (Eire)(Irish Free State) | 59 | Denmark | |
| 40b | Iceland | 59a | Greenland | |
| 41 | United Kingdom | 59b | Faroe | |
| 41a | Northern Ireland | 60 | Eastern Continental Europe | |
| 41b | British possessions in the Western Hemisphere (except Canada) | 60a | Baltic States | |
| 41c | British Honduras | 60b | Esthonia | |
| 41d | British Guiana | 60c | Esthonia | |
| 41e | British West Indies | 60d | Lithuania | |
| 41f | The West Indies | 60e | Finland | |
| 41g | Bahamas | 61 | Union of Soviet Socialist Republics | |
| 41h | Bermuda | 61a | Bessarabia | |
| 41j | Virgin Islands | 61b | Ukraine | |
| 41r | Falkland Islands | 61c | Sakhalin Islands (Russian portion) | |
| 41s | South Georgia, South Sandwich and South Orkney Islands | 62 | Germany | |
| 41t | South Shetland Islands | 62a | Federal Republic of Germany | |
| 42 | Canada | 62b | Russian Zone (East Germany) | |
| 43 | Australia | 62c | Polish Administration | |
| 44 | New Zealand | 63 | Austria | |
| 45 | British territories in Africa | 64 | Hungary | |
| 45a | Union of South Africa | 65 | Italy | |
| 45b | British South Africa | 65a | Vatican City | |
| 45c | Rhodesia | 66 | Romania | |
| 45d | Basutoland | 67 | Albania | |
| 45e | Bechuanaland | 68 | Yugoslavia | |
| 45f | Swaziland | 69 | Bulgaria | |
| 45g | British West Africa | 70 | Africa | |
| 45h | Nigeria | 70a | Mediterranean Countries | |
| 45j | Ghana | 71 | Morocco | |
| 45m | Sierra Leone | 72 | Tunisia | |
| 45n | Gambia | 73 | Libya | |
| 45p | British East Africa | 74 | Egypt | |
| 45r | Kenya Colony | 75 | Ethiopia | |
| 45s | Uganda | 75a | Eritrea | |
| 45t | Zanzibar | 76 | Liberia | |
| 45u | Somaliland | 77 | Trust Territory of Somaliland | |
| 45w | Sudan | 78 | Tanganyika Territory | |
| 45x | British Southwest Africa | 80 | Near East | |
| 46 | British territories in Asia | 81 | Greece | |
| 46a | Andaman and Nicobar Islands | 81a | Crete | |
| 46b | Laccadive Islands | 81b | Samos | |
| 46c | Aden Colony and Protectorate | 82 | Turkey | |
| 46d | Bahrein Islands | 83 | Syria | |
| 46e | Ceylong | 83a | Lebanon | |
| 46f | Singapore including Christmas Island | 84 | Palestine | |
| 46g | Hong Kong | 84a | Israel | |
| 46h | British Borneo | 85 | Jordan | |
| 46j | Republic of the Maldive Islands | 86 | Arabia |