ISO 3166-1 alpha-2
ISO 3166-1 alpha-2 codes are two-letter country codes defined in ISO 3166-1, part of the ISO 3166 standard published by the International Organization for Standardization, to represent countries, dependent territories, and special areas of geographical interest. They are the most widely used of the country codes published by ISO, and are used most prominently for the Internet's country [code top-level domain]s. They were first included as part of the ISO 3166 standard in its first edition in 1974.
Uses and applications
The ISO 3166-1 alpha-2 codes are used in different environments and are also part of other standards. In some cases they are not perfectly implemented.Perfect implementations
The ISO 3166-1 alpha-2 codes are used in the following standards:| Short name | Long name | Comment |
| ISO 3166-2 | Country subdivision code | |
| ISO 3901 | International Standard Recording Code | |
| ISO 4217 | Currency code | |
| ISO 6166 | International Securities Identifying Number | |
| ISO 9362 | Bank Identifier Codes | Also known as SWIFT codes |
| ISO 13616 | International Bank Account Number | |
| ISO 15511 | International Standard Identifier for Libraries and Related Organizations | |
| UN/LOCODE | United Nations Code for Trade and Transport Locations | Implemented by the United Nations Economic Commission for Europe |
Imperfect implementations
Starting in 1985, ISO 3166-1 alpha-2 codes have been used in the Domain Name System as country code top-level domains. The Internet Assigned Numbers Authority currently assigns the ccTLDs mostly following the alpha-2 codes, but with a few exceptions. For example, the United Kingdom, whose alpha-2 code is, uses .uk instead of .gb as its ccTLD, as is currently exceptionally reserved in ISO 3166-1 at the request of the United Kingdom.The WIPO coding standard ST.3 is based on ISO 3166-1 alpha-2 codes, but includes a number of additional codes for international intellectual property organizations, which are currently reserved and not used at the present stage in ISO 3166-1.
The European Commission generally uses ISO 3166-1 alpha-2 codes with two exceptions: is used to represent Greece, and is used to represent the United Kingdom. This notwithstanding, the Official Journal of the European Communities specified that and be used to represent Greece and United Kingdom respectively. For VAT administration purposes, the European Commission uses VAT identification numbers| and for Greece and the United Kingdom respectively.]
The United Nations uses a combination of ISO 3166-1 alpha-2 and alpha-3 codes, along with codes that pre-date the creation of ISO 3166, for List of [international vehicle registration codes|international vehicle registration codes], which are codes used to identify the issuing country of a vehicle registration plate; some of these codes are currently indeterminately reserved in ISO 3166-1.
IETF language tags are also partially derived from ISO 3166-1 alpha-2 codes. The full list of ISO 3166-1 codes assigned to countries and territories are usable as region subtags. Also, the "exceptionally reserved" alpha-2 codes defined in ISO 3166-1 are also usable as region subtags for language tags. However, newer stability policies have been implemented to avoid deleting subtags that have been withdrawn in ISO 3166-1; instead they are kept and aliased to the new preferred subtags, or kept as subtags grouping several countries. Some other region grouping subtags are derived from other standards. Under the newer stability policies, old assigned codes that have been withdrawn from ISO 3166-1 should no longer be reassigned to another country or territory.
Current codes
Decoding table
The following is a colour-coded decoding table of all 676 ISO 3166-1 alpha-2 codes.| title="user-assigned" | title="unassigned" | title="exceptionally reserved: Ascension Island" | title="Andorra" | title="United Arab Emirates" | title="Afghanistan" | title="Antigua and Barbuda" | title="unassigned" | title="Anguilla " | title="unassigned" | title="unassigned" | title="Albania" | title="Armenia" | title="transitionally reserved: Netherlands Antilles" | title="Angola" | title="indeterminately reserved: African Regional Industrial Property Organization" | title="Antarctica" | title="Argentina" | title="American Samoa" | title="Austria" | title="Australia" | title="unassigned" | title="Aruba" | title="Åland Islands" | title="unassigned" | title="Azerbaijan" |
| title="Bosnia and Herzegovina" | title="Barbados" | title="unassigned" | title="Bangladesh" | title="Belgium" | title="Burkina Faso" | title="Bulgaria" | title="Bahrain" | title="Burundi" | title="Benin" | title="unassigned" | title="Saint Barthélemy" | title="Bermuda" | title="Brunei Darussalam" | title="Bolivia, Plurinational State of" | title="unassigned" | title="Bonaire, Sint Eustatius and Saba " | title="Brazil" | title="Bahamas" | title="Bhutan" | title="transitionally reserved: Burma" | title="Bouvet Island" | title="Botswana" | title="indeterminately reserved: Benelux Trademarks and Designs Office" | title="Belarus" | title="Belize" |
| title="Canada" | title="unassigned" | title="Cocos Islands" | title="Congo, Democratic Republic of the" | title="unassigned" | title="Central African Republic" | title="Congo" | title="Switzerland" | title="Côte d'Ivoire" | title="unassigned" | title="Cook Islands" | title="Chile" | title="Cameroon" | title="China" | title="Colombia" | title="exceptionally reserved: Clipperton Island" | title="exceptionally reserved: Island of Sark" | title="Costa Rica" | title="transitionally reserved: Serbia and Montenegro " | title="deleted: Canton and Enderbury Islands; unassigned" | title="Cuba" | title="Cabo Verde" | title="Curaçao" | title="Christmas Island" | title="Cyprus" | title="Czechia" |
| title="unassigned" | title="unassigned" | title="unassigned" | title="deleted: German Democratic Republic; unassigned" | title="Germany" | title="unassigned" | title="exceptionally reserved: Diego Garcia" | title="unassigned" | title="unassigned" | title="Djibouti" | title="Denmark" | title="unassigned" | title="Dominica" | title="unassigned" | title="Dominican Republic" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="indeterminately reserved: Benin" | title="Algeria" |
| title="exceptionally reserved: Ceuta, Melilla" | title="unassigned" | title="Ecuador" | title="unassigned" | title="Estonia" | title="indeterminately reserved: Union of Countries under the European Community Patent Convention" | title="Egypt" | title="Western Sahara" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="indeterminately reserved: European Trademark Office" | title="unassigned" | title="unassigned" | title="indeterminately reserved: European Patent Organization" | title="unassigned" | title="Eritrea" | title="Spain" | title="Ethiopia" | title="exceptionally reserved: European Union" | title="indeterminately reserved: Eurasian Patent Organization" | title="indeterminately reserved: Estonia" | title="unassigned" | title="unassigned" | title="exceptionally reserved: Eurozone" |
| title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="Finland" | title="Fiji" | title="Falkland Islands " | title="indeterminately reserved: Liechtenstein" | title="Micronesia, Federated States of" | title="unassigned" | title="Faroe Islands" | title="unassigned" | title="deleted: French Southern and Antarctic Territories; unassigned" | title="France" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="exceptionally reserved: France, Metropolitan" | title="unassigned" | title="unassigned" |
| title="Gabon" | title="United Kingdom of Great Britain and Northern Ireland" | title="indeterminately reserved: Patent Office of the Cooperation Council for the Arab States of the Gulf " | title="Grenada" | title="Georgia " | title="French Guiana" | title="Guernsey" | title="Ghana" | title="Gibraltar" | title="unassigned" | title="unassigned" | title="Greenland" | title="Gambia" | title="Guinea" | title="unassigned" | title="Guadeloupe" | title="Equatorial Guinea" | title="Greece" | title="South Georgia and the South Sandwich Islands" | title="Guatemala" | title="Guam" | title="unassigned" | title="Guinea-Bissau" | title="unassigned" | title="Guyana" | title="unassigned" |
| title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="Hong Kong" | title="unassigned" | title="Heard Island and McDonald Islands" | title="Honduras" | title="unassigned" | title="unassigned" | title="unassigned" | title="Croatia" | title="unassigned" | title="Haiti" | title="Hungary" | title="deleted: Upper Volta; unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" |
| title="unassigned" | title="indeterminately reserved: International Bureau of WIPO" | title="exceptionally reserved: Canary Islands" | title="Indonesia" | title="Ireland" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="Israel" | title="Isle of Man" | title="India" | title="British Indian Ocean Territory" | title="unassigned" | title="Iraq" | title="Iran, Islamic Republic of" | title="Iceland" | title="Italy" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" |
| title="indeterminately reserved: Jamaica" | title="unassigned" | title="unassigned" | title="unassigned" | title="Jersey" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="Jamaica" | title="unassigned" | title="Jordan" | title="Japan" | title="unassigned" | title="unassigned" | title="unassigned" | title="deleted: Johnston Island; unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" |
| title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="Kenya" | title="unassigned" | title="Kyrgyzstan" | title="Cambodia" | title="Kiribati" | title="unassigned" | title="unassigned" | title="unassigned" | title="Comoros" | title="Saint Kitts and Nevis" | title="unassigned" | title="Korea, Democratic People's Republic of" | title="unassigned" | title="Korea, Republic of" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="Kuwait" | title="unassigned" | title="Cayman Islands" | title="Kazakhstan" |
| title="Lao People's Democratic Republic" | title="Lebanon" | title="Saint Lucia" | title="unassigned" | title="unassigned" | title="indeterminately reserved: Libya Fezzan" | title="unassigned" | title="unassigned" | title="Liechtenstein" | title="unassigned" | title="Sri Lanka" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="Liberia" | title="Lesotho" | title="Lithuania " | title="Luxembourg" | title="Latvia" | title="unassigned" | title="unassigned" | title="Libya" | title="unassigned" |
| title="Morocco" | title="unassigned" | title="Monaco" | title="Moldova, Republic of" | title="Montenegro " | title="Saint Martin " | title="Madagascar" | title="Marshall Islands" | title="deleted: Midway Islands; unassigned" | title="unassigned" | title="North Macedonia" | title="Mali" | title="Myanmar" | title="Mongolia" | title="Macao" | title="Northern Mariana Islands" | title="Martinique" | title="Mauritania" | title="Montserrat" | title="Malta" | title="Mauritius" | title="Maldives" | title="Malawi" | title="Mexico" | title="Malaysia" | title="Mozambique" |
| title="Namibia" | title="unassigned" | title="New Caledonia" | title="unassigned" | title="Niger" | title="Norfolk Island" | title="Nigeria" | title="deleted: New Hebrides; unassigned" | title="Nicaragua" | title="unassigned" | title="unassigned" | title="Netherlands, Kingdom of the" | title="unassigned" | title="unassigned" | title="Norway" | title="Nepal" | title="deleted: Dronning Maud Land; unassigned" | title="Nauru" | title="unassigned" | title="transitionally reserved: Neutral Zone" | title="Niue" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="New Zealand" |
| title="indeterminately reserved: African Intellectual Property Organization" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="Oman" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" |
| title="Panama" | title="unassigned" | title="deleted: Pacific Islands ; unassigned" | title="unassigned" | title="Peru" | title="French Polynesia" | title="Papua New Guinea" | title="Philippines" | title="indeterminately reserved: Philippines" | title="unassigned" | title="Pakistan" | title="Poland" | title="Saint Pierre and Miquelon" | title="Pitcairn" | title="unassigned" | title="unassigned" | title="unassigned" | title="Puerto Rico" | title="Palestine, State of" | title="Portugal" | title="deleted: United States Miscellaneous Pacific Islands; unassigned" | title="unassigned" | title="Palau" | title="unassigned" | title="Paraguay" | title="deleted: Panama Canal Zone; unassigned" |
| title="Qatar" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="user-assigned" | title="user-assigned" | title="user-assigned" | title="user-assigned" | title="user-assigned" | title="user-assigned" | title="user-assigned" | title="user-assigned" | title="user-assigned" | title="user-assigned" | title="user-assigned" | title="user-assigned" | title="user-assigned" | title="user-assigned" |
| title="indeterminately reserved: Argentina" | title="indeterminately reserved: Bolivia; Botswana" | title="indeterminately reserved: China" | title="unassigned" | title="Réunion" | title="unassigned" | title="unassigned" | title="indeterminately reserved: Haiti" | title="indeterminately reserved: Indonesia" | title="unassigned" | title="unassigned" | title="indeterminately reserved: Lebanon" | title="indeterminately reserved: Madagascar" | title="indeterminately reserved: Niger" | title="Romania" | title="indeterminately reserved: Philippines" | title="unassigned" | title="unassigned" | title="Serbia" | title="unassigned" | title="Russian Federation " | title="unassigned" | title="Rwanda" | title="unassigned" | title="unassigned" | title="unassigned" |
| title="Saudi Arabia" | title="Solomon Islands" | title="Seychelles" | title="Sudan" | title="Sweden" | title="indeterminately reserved: Finland" | title="Singapore" | title="Saint Helena, Ascension and Tristan da Cunha" | title="Slovenia" | title="Svalbard and Jan Mayen" | title="Slovakia " | title="Sierra Leone" | title="San Marino" | title="Senegal" | title="Somalia" | title="unassigned" | title="unassigned" | title="Suriname" | title="South Sudan" | title="Sao Tome and Principe" | title="exceptionally reserved: USSR" | title="El Salvador" | title="unassigned" | title="Sint Maarten " | title="Syrian Arab Republic" | title="Eswatini" |
| title="exceptionally reserved: Tristan da Cunha" | title="unassigned" | title="Turks and Caicos Islands" | title="Chad" | title="unassigned" | title="French Southern Territories" | title="Togo" | title="Thailand" | title="unassigned" | title="Tajikistan" | title="Tokelau" | title="Timor-Leste" | title="Turkmenistan" | title="Tunisia" | title="Tonga" | title="transitionally reserved: East Timor" | title="unassigned" | title="Türkiye" | title="unassigned" | title="Trinidad and Tobago" | title="unassigned" | title="Tuvalu" | title="Taiwan, Province of China" | title="unassigned" | title="unassigned" | title="Tanzania, United Republic of" |
| title="Ukraine" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="Uganda" | title="unassigned" | title="unassigned" | title="unassigned" | title="exceptionally reserved: United Kingdom" | title="unassigned" | title="United States Minor Outlying Islands" | title="exceptionally reserved: United Nations" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="United States of America" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="Uruguay" | title="Uzbekistan" |
| title="Holy See" | title="unassigned" | title="Saint Vincent and the Grenadines" | title="deleted: Viet-Nam, Democratic Republic of; unassigned" | title="Venezuela, Bolivarian Republic of" | title="unassigned" | title="Virgin Islands " | title="unassigned" | title="Virgin Islands " | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="Viet Nam" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="Vanuatu" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" |
| title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="Wallis and Futuna" | title="indeterminately reserved: Grenada" | title="unassigned" | title="unassigned" | title="unassigned" | title="deleted: Wake Island; unassigned" | title="indeterminately reserved: Saint Lucia" | title="unassigned" | title="unassigned" | title="indeterminately reserved: World Intellectual Property Organization" | title="unassigned" | title="unassigned" | title="unassigned" | title="Samoa" | title="unassigned" | title="unassigned" | title="indeterminately reserved: Saint Vincent" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" |
| title="user-assigned" | title="user-assigned" | title="user-assigned" | title="user-assigned" | title="user-assigned" | title="user-assigned" | title="user-assigned" | title="user-assigned" | title="user-assigned" | title="user-assigned" | title="user-assigned" | title="user-assigned" | title="user-assigned" | title="user-assigned" | title="user-assigned" | title="user-assigned" | title="user-assigned" | title="user-assigned" | title="user-assigned" | title="user-assigned" | title="user-assigned" | title="user-assigned" | title="user-assigned" | title="user-assigned" | title="user-assigned" | title="user-assigned" |
| title="unassigned" | title="unassigned" | title="unassigned" | title="deleted: Yemen, Democratic; unassigned" | title="Yemen" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="Mayotte" | title="transitionally reserved: Yugoslavia" | title="indeterminately reserved: Venezuela" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" |
| title="South Africa" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="Zambia" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="transitionally reserved: Zaire" | title="unassigned" | title="unassigned" | title="unassigned" | title="unassigned" | title="Zimbabwe" | title="unassigned" | title="unassigned" | title="user-assigned" |
Officially assigned code elements
The following is a complete list of the 249 current officially assigned ISO 3166-1 alpha-2 codes, with the following columns:- Code: ISO 3166-1 alpha-2 code, pointing to its ISO 3166-2 article
- Country name: English short name officially used by the ISO 3166 Maintenance Agency
- Year: Year when alpha-2 code was first officially assigned
- ccTLD: Corresponding country code top-level domain ; exceptions where another ccTLD is assigned for the country are shown in parentheses
- Notes: Any unofficial notes
| Code | Country name | Year | ccTLD | Notes |
| ISO 3166-2:AD| | Andorra | 1974 | .ad | |
| ISO 3166-2:AE| | United Arab Emirates | 1974 | .ae | |
| ISO 3166-2:AF| | Afghanistan | 1974 | .af | |
| ISO 3166-2:AG| | Antigua and Barbuda | 1974 | .ag | |
| ISO 3166-2:AI| | Anguilla | 1985 | .ai | previously represented French Afars and Issas |
| ISO 3166-2:AL| | Albania | 1974 | .al | |
| ISO 3166-2:AM| | Armenia | 1992 | .am | |
| ISO 3166-2:AO| | Angola | 1974 | .ao | |
| ISO 3166-2:AQ| | Antarctica | 1974 | .aq | Covers the territories south of 60° south latitude Code taken from name in French: Antarctique |
| ISO 3166-2:AR| | Argentina | 1974 | .ar | |
| ISO 3166-2:AS| | American Samoa | 1974 | .as | |
| ISO 3166-2:AT| | Austria | 1974 | .at | |
| ISO 3166-2:AU| | Australia | 1974 | .au | Includes the Ashmore and Cartier Islands and the Coral Sea Islands |
| ISO 3166-2:AW| | Aruba | 1986 | .aw | |
| ISO 3166-2:AX| | 2004 | .ax | An autonomous county of Finland | |
| ISO 3166-2:AZ| | Azerbaijan | 1992 | .az | |
| ISO 3166-2:BA| | Bosnia and Herzegovina | 1992 | .ba | |
| ISO 3166-2:BB| | Barbados | 1974 | .bb | |
| ISO 3166-2:BD| | Bangladesh | 1974 | .bd | |
| ISO 3166-2:BE| | Belgium | 1974 | .be | |
| ISO 3166-2:BF| | Burkina Faso | 1984 | .bf | Name changed from Upper Volta |
| ISO 3166-2:BG| | Bulgaria | 1974 | .bg | |
| ISO 3166-2:BH| | Bahrain | 1974 | .bh | |
| ISO 3166-2:BI| | Burundi | 1974 | .bi | |
| ISO 3166-2:BJ| | Benin | 1977 | .bj | Name changed from Dahomey |
| ISO 3166-2:BL| | Saint Barthélemy | 2007 | .bl | |
| ISO 3166-2:BM| | Bermuda | 1974 | .bm | |
| ISO 3166-2:BN| | Brunei Darussalam | 1974 | .bn | Previous ISO country name: Brunei |
| ISO 3166-2:BO| | Bolivia, Plurinational State of | 1974 | .bo | Previous ISO country name: Bolivia |
| ISO 3166-2:BQ| | Bonaire, Sint Eustatius and Saba | 2010 | .bq | Consists of three Caribbean "special municipalities", which are part of the Netherlands proper: Bonaire, Sint Eustatius, and Saba Previous ISO country name: Bonaire, Saint Eustatius and Saba previously represented British Antarctic Territory |
| ISO 3166-2:BR| | Brazil | 1974 | .br | |
| ISO 3166-2:BS| | Bahamas | 1974 | .bs | |
| ISO 3166-2:BT| | Bhutan | 1974 | .bt | |
| ISO 3166-2:BV| | Bouvet Island | 1974 | .bv | Dependency of Norway |
| ISO 3166-2:BW| | Botswana | 1974 | .bw | |
| ISO 3166-2:BY| | Belarus | 1974 | .by | Code taken from previous ISO country name: Byelorussian SSR Code assigned as the country was already a UN member since 1945 |
| ISO 3166-2:BZ| | Belize | 1974 | .bz | |
| ISO 3166-2:CA| | Canada | 1974 | .ca | |
| ISO 3166-2:CC| | Cocos Islands | 1974 | .cc | External territory of Australia |
| ISO 3166-2:CD| | Congo, Democratic Republic of the | 1997 | .cd | Name changed from Zaire |
| ISO 3166-2:CF| | Central African Republic | 1974 | .cf | |
| ISO 3166-2:CG| | Congo | 1974 | .cg | |
| ISO 3166-2:CH| | Switzerland | 1974 | .ch | Code taken from name in Latin: Confoederatio Helvetica |
| ISO 3166-2:CI| | 1974 | .ci | ISO country name follows UN designation | |
| ISO 3166-2:CK| | Cook Islands | 1974 | .ck | |
| ISO 3166-2:CL| | Chile | 1974 | .cl | |
| ISO 3166-2:CM| | Cameroon | 1974 | .cm | Previous ISO country name: Cameroon, United Republic of |
| ISO 3166-2:CN| | China | 1974 | .cn | |
| ISO 3166-2:CO| | Colombia | 1974 | .co | |
| ISO 3166-2:CR| | Costa Rica | 1974 | .cr | |
| ISO 3166-2:CU| | Cuba | 1974 | .cu | |
| ISO 3166-2:CV| | Cabo Verde | 1974 | .cv | ISO country name follows UN designation |
| ISO 3166-2:CW| | Curaçao | 2010 | .cw | |
| ISO 3166-2:CX| | Christmas Island | 1974 | .cx | External territory of Australia |
| ISO 3166-2:CY| | Cyprus | 1974 | .cy | |
| ISO 3166-2:CZ| | Czechia | 1993 | .cz | Previous ISO country name: Czech Republic |
| ISO 3166-2:DE| | Germany | 1974 | .de | Code taken from name in German: Deutschland Code used for West Germany before 1990 |
| ISO 3166-2:DJ| | Djibouti | 1977 | .dj | Name changed from French Afars and Issas |
| ISO 3166-2:DK| | Denmark | 1974 | .dk | |
| ISO 3166-2:DM| | Dominica | 1974 | .dm | |
| ISO 3166-2:DO| | Dominican Republic | 1974 | .do | |
| ISO 3166-2:DZ| | Algeria | 1974 | .dz | Code taken from name in Arabic الجزائر al-Djazā'ir, Algerian Arabic الدزاير al-Dzāyīr, or Berber ⴷⵣⴰⵢⵔ Dzayer |
| ISO 3166-2:EC| | Ecuador | 1974 | .ec | |
| ISO 3166-2:EE| | Estonia | 1992 | .ee | Code taken from name in Estonian: Eesti |
| ISO 3166-2:EG| | Egypt | 1974 | .eg | |
| ISO 3166-2:EH| | Western Sahara | 1974 | .eh | Previous ISO country name: Spanish Sahara |
| ISO 3166-2:ER| | Eritrea | 1993 | .er | |
| ISO 3166-2:ES| | Spain | 1974 | .es | Code taken from name in Spanish: España |
| ISO 3166-2:ET| | Ethiopia | 1974 | .et | |
| ISO 3166-2:FI| | Finland | 1974 | .fi | |
| ISO 3166-2:FJ| | Fiji | 1974 | .fj | |
| ISO 3166-2:FK| | Falkland Islands | 1974 | .fk | ISO country name follows UN designation due to the Falkland Islands sovereignty dispute |
| ISO 3166-2:FM| | Micronesia, Federated States of | 1986 | .fm | Previous ISO country name: Micronesia |
| ISO 3166-2:FO| | Faroe Islands | 1974 | .fo | Code taken from name in Faroese: Føroyar |
| ISO 3166-2:FR| | France | 1974 | .fr | Includes Clipperton Island |
| ISO 3166-2:GA| | Gabon | 1974 | .ga | |
| ISO 3166-2:GB| | United Kingdom of Great Britain and Northern Ireland | 1974 | .gb | Includes Akrotiri and Dhekelia Code taken from Great Britain Previous ISO country name: United Kingdom .uk is the primary ccTLD of the United Kingdom instead of .gb |
| ISO 3166-2:GD| | Grenada | 1974 | .gd | |
| ISO 3166-2:GE| | Georgia | 1992 | .ge | previously represented Gilbert and Ellice Islands |
| ISO 3166-2:GF| | French Guiana | 1974 | .gf | Code taken from name in French: Guyane française |
| ISO 3166-2:GG| | Guernsey | 2006 | .gg | A British Crown Dependency |
| ISO 3166-2:GH| | Ghana | 1974 | .gh | |
| ISO 3166-2:GI| | Gibraltar | 1974 | .gi | |
| ISO 3166-2:GL| | Greenland | 1974 | .gl | |
| ISO 3166-2:GM| | Gambia | 1974 | .gm | |
| ISO 3166-2:GN| | Guinea | 1974 | .gn | |
| ISO 3166-2:GP| | Guadeloupe | 1974 | .gp | |
| ISO 3166-2:GQ| | Equatorial Guinea | 1974 | .gq | Code taken from name in French: Guinée équatoriale |
| ISO 3166-2:GR| | Greece | 1974 | .gr | |
| ISO 3166-2:GS| | South Georgia and the South Sandwich Islands | 1993 | .gs | |
| ISO 3166-2:GT| | Guatemala | 1974 | .gt | |
| ISO 3166-2:GU| | Guam | 1974 | .gu | |
| ISO 3166-2:GW| | Guinea-Bissau | 1974 | .gw | |
| ISO 3166-2:GY| | Guyana | 1974 | .gy | |
| ISO 3166-2:HK| | Hong Kong | 1974 | .hk | Hong Kong is officially a Special Administrative Region of the People's Republic of China since 1 July 1997 |
| ISO 3166-2:HM| | Heard Island and McDonald Islands | 1974 | .hm | External territory of Australia |
| ISO 3166-2:HN| | Honduras | 1974 | .hn | |
| ISO 3166-2:HR| | Croatia | 1992 | .hr | Code taken from name in Croatian: Hrvatska |
| ISO 3166-2:HT| | Haiti | 1974 | .ht | |
| ISO 3166-2:HU| | Hungary | 1974 | .hu | |
| ISO 3166-2:ID| | Indonesia | 1974 | .id | |
| ISO 3166-2:IE| | Ireland | 1974 | .ie | |
| ISO 3166-2:IL| | Israel | 1974 | .il | |
| ISO 3166-2:IM| | Isle of Man | 2006 | .im | A British Crown Dependency |
| ISO 3166-2:IN| | India | 1974 | .in | |
| ISO 3166-2:IO| | British Indian Ocean Territory | 1974 | .io | |
| ISO 3166-2:IQ| | Iraq | 1974 | .iq | |
| ISO 3166-2:IR| | Iran, Islamic Republic of | 1974 | .ir | Previous ISO country name: Iran |
| ISO 3166-2:IS| | Iceland | 1974 | .is | Code taken from name in Icelandic: Ísland |
| ISO 3166-2:IT| | Italy | 1974 | .it | |
| ISO 3166-2:JE| | Jersey | 2006 | .je | A British Crown Dependency |
| ISO 3166-2:JM| | Jamaica | 1974 | .jm | |
| ISO 3166-2:JO| | Jordan | 1974 | .jo | |
| ISO 3166-2:JP| | Japan | 1974 | .jp | |
| ISO 3166-2:KE| | Kenya | 1974 | .ke | |
| ISO 3166-2:KG| | Kyrgyzstan | 1992 | .kg | |
| ISO 3166-2:KH| | Cambodia | 1974 | .kh | Code taken from former name: Khmer Republic Previous ISO country name: Kampuchea, Democratic |
| ISO 3166-2:KI| | Kiribati | 1979 | .ki | Name changed from Gilbert Islands |
| ISO 3166-2:KM| | Comoros | 1974 | .km | Code taken from name in Comorian: Komori Previous ISO country name: Comoro Islands |
| ISO 3166-2:KN| | Saint Kitts and Nevis | 1974 | .kn | Previous ISO country name: Saint Kitts-Nevis-Anguilla |
| ISO 3166-2:KP| | 1974 | .kp | ISO country name follows UN designation | |
| ISO 3166-2:KR| | Korea, Republic of | 1974 | .kr | ISO country name follows UN designation |
| ISO 3166-2:KW| | Kuwait | 1974 | .kw | |
| ISO 3166-2:KY| | Cayman Islands | 1974 | .ky | |
| ISO 3166-2:KZ| | Kazakhstan | 1992 | .kz | Previous ISO country name: |
| ISO 3166-2:LA| | Lao People's Democratic Republic | 1974 | .la | ISO country name follows UN designation |
| ISO 3166-2:LB| | Lebanon | 1974 | .lb | |
| ISO 3166-2:LC| | Saint Lucia | 1974 | .lc | |
| ISO 3166-2:LI| | Liechtenstein | 1974 | .li | |
| ISO 3166-2:LK| | Sri Lanka | 1974 | .lk | |
| ISO 3166-2:LR| | Liberia | 1974 | .lr | |
| ISO 3166-2:LS| | Lesotho | 1974 | .ls | |
| ISO 3166-2:LT| | Lithuania | 1992 | .lt | LT formerly reserved indeterminately for Libya Tripoli |
| ISO 3166-2:LU| | Luxembourg | 1974 | .lu | |
| ISO 3166-2:LV| | Latvia | 1992 | .lv | |
| ISO 3166-2:LY| | Libya | 1974 | .ly | Previous ISO country name: Libyan Arab Jamahiriya |
| ISO 3166-2:MA| | Morocco | 1974 | .ma | Code taken from name in French: Maroc |
| ISO 3166-2:MC| | Monaco | 1974 | .mc | |
| ISO 3166-2:MD| | Moldova, Republic of | 1992 | .md | Previous ISO country name: Moldova |
| ISO 3166-2:ME| | Montenegro | 2006 | .me | ME formerly reserved indeterminately for Western Sahara |
| ISO 3166-2:MF| | Saint Martin | 2007 | .mf | The Dutch part of Saint Martin island is assigned code #SX| |
| ISO 3166-2:MG| | Madagascar | 1974 | .mg | |
| ISO 3166-2:MH| | Marshall Islands | 1986 | .mh | |
| ISO 3166-2:MK| | North Macedonia | 1993 | .mk | Code taken from name in Macedonian: Makedonija Previous ISO country name: Macedonia, the former Yugoslav Republic of |
| ISO 3166-2:ML| | Mali | 1974 | .ml | |
| ISO 3166-2:MM| | Myanmar | 1989 | .mm | Name changed from Burma |
| ISO 3166-2:MN| | Mongolia | 1974 | .mn | |
| ISO 3166-2:MO| | Macao | 1974 | .mo | Previous ISO country name: Macau; Macao is officially a Special Administrative Region of the People's Republic of China since 20 December 1999 |
| ISO 3166-2:MP| | Northern Mariana Islands | 1986 | .mp | |
| ISO 3166-2:MQ| | Martinique | 1974 | .mq | |
| ISO 3166-2:MR| | Mauritania | 1974 | .mr | |
| ISO 3166-2:MS| | Montserrat | 1974 | .ms | |
| ISO 3166-2:MT| | Malta | 1974 | .mt | |
| ISO 3166-2:MU| | Mauritius | 1974 | .mu | |
| ISO 3166-2:MV| | Maldives | 1974 | .mv | |
| ISO 3166-2:MW| | Malawi | 1974 | .mw | |
| ISO 3166-2:MX| | Mexico | 1974 | .mx | |
| ISO 3166-2:MY| | Malaysia | 1974 | .my | |
| ISO 3166-2:MZ| | Mozambique | 1974 | .mz | |
| ISO 3166-2:NA| | Namibia | 1974 | .na | |
| ISO 3166-2:NC| | New Caledonia | 1974 | .nc | |
| ISO 3166-2:NE| | Niger | 1974 | .ne | |
| ISO 3166-2:NF| | Norfolk Island | 1974 | .nf | External territory of Australia |
| ISO 3166-2:NG| | Nigeria | 1974 | .ng | |
| ISO 3166-2:NI| | Nicaragua | 1974 | .ni | |
| ISO 3166-2:NL| | Netherlands, Kingdom of the | 1974 | .nl | Officially includes the islands Bonaire, Saint Eustatius and Saba, which also have code BQ in ISO 3166-1. Within ISO 3166-2, Aruba, Curaçao, and Sint Maarten are also coded as subdivisions of NL. Previous ISO country name: Netherlands |
| ISO 3166-2:NO| | Norway | 1974 | .no | |
| ISO 3166-2:NP| | Nepal | 1974 | .np | |
| ISO 3166-2:NR| | Nauru | 1974 | .nr | |
| ISO 3166-2:NU| | Niue | 1974 | .nu | Previous ISO country name: Niue Island |
| ISO 3166-2:NZ| | New Zealand | 1974 | .nz | |
| ISO 3166-2:OM| | Oman | 1974 | .om | |
| ISO 3166-2:PA| | Panama | 1974 | .pa | |
| ISO 3166-2:PE| | Peru | 1974 | .pe | |
| ISO 3166-2:PF| | French Polynesia | 1974 | .pf | Code taken from name in French: Polynésie française |
| ISO 3166-2:PG| | Papua New Guinea | 1974 | .pg | |
| ISO 3166-2:PH| | Philippines | 1974 | .ph | |
| ISO 3166-2:PK| | Pakistan | 1974 | .pk | |
| ISO 3166-2:PL| | Poland | 1974 | .pl | |
| ISO 3166-2:PM| | Saint Pierre and Miquelon | 1974 | .pm | |
| ISO 3166-2:PN| | Pitcairn | 1974 | .pn | Previous ISO country name: Pitcairn Islands |
| ISO 3166-2:PR| | Puerto Rico | 1974 | .pr | |
| ISO 3166-2:PS| | 1999 | .ps | Previous ISO country name: Palestinian Territory, Occupied Consists of the West Bank and the Gaza Strip | |
| ISO 3166-2:PT| | Portugal | 1974 | .pt | |
| ISO 3166-2:PW| | Palau | 1986 | .pw | |
| ISO 3166-2:PY| | Paraguay | 1974 | .py | |
| ISO 3166-2:QA| | Qatar | 1974 | .qa | |
| ISO 3166-2:RE| | 1974 | .re | ||
| ISO 3166-2:RO| | Romania | 1974 | .ro | |
| ISO 3166-2:RS| | Serbia | 2006 | .rs | Republic of Serbia |
| ISO 3166-2:RU| | Russian Federation | 1992 | .ru | ISO country name follows UN designation ; RU formerly reserved indeterminately for Burundi |
| ISO 3166-2:RW| | Rwanda | 1974 | .rw | |
| ISO 3166-2:SA| | Saudi Arabia | 1974 | .sa | |
| ISO 3166-2:SB| | Solomon Islands | 1974 | .sb | Code taken from former name: British Solomon Islands |
| ISO 3166-2:SC| | Seychelles | 1974 | .sc | |
| ISO 3166-2:SD| | Sudan | 1974 | .sd | |
| ISO 3166-2:SE| | Sweden | 1974 | .se | |
| ISO 3166-2:SG| | Singapore | 1974 | .sg | |
| ISO 3166-2:SH| | Saint Helena, Ascension and Tristan da Cunha | 1974 | .sh | Previous ISO country name: Saint Helena. |
| ISO 3166-2:SI| | Slovenia | 1992 | .si | |
| ISO 3166-2:SJ| | Svalbard and Jan Mayen | 1974 | .sj | Previous ISO name: Svalbard and Jan Mayen Islands Consists of two Arctic territories of Norway: Svalbard and Jan Mayen |
| ISO 3166-2:SK| | Slovakia | 1993 | .sk | previously represented the Kingdom of Sikkim |
| ISO 3166-2:SL| | Sierra Leone | 1974 | .sl | |
| ISO 3166-2:SM| | San Marino | 1974 | .sm | |
| ISO 3166-2:SN| | Senegal | 1974 | .sn | |
| ISO 3166-2:SO| | Somalia | 1974 | .so | |
| ISO 3166-2:SR| | Suriname | 1974 | .sr | Previous ISO country name: Surinam |
| ISO 3166-2:SS| | South Sudan | 2011 | .ss | |
| ISO 3166-2:ST| | São Tomé and Príncipe| | 1974 | .st | |
| ISO 3166-2:SV| | El Salvador | 1974 | .sv | |
| ISO 3166-2:SX| | Sint Maarten | 2010 | .sx | The French part of Saint Martin island is assigned code #MF| |
| ISO 3166-2:SY| | Syrian Arab Republic | 1974 | .sy | ISO country name follows UN designation |
| ISO 3166-2:SZ| | Eswatini | 1974 | .sz | Previous ISO country name: Swaziland |
| ISO 3166-2:TC| | Turks and Caicos Islands | 1974 | .tc | |
| ISO 3166-2:TD| | Chad | 1974 | .td | Code taken from name in French: Tchad |
| ISO 3166-2:TF| | French Southern Territories | 1979 | .tf | Covers the French Southern and Antarctic Lands except Adélie Land Code taken from name in French: Terres australes françaises |
| ISO 3166-2:TG| | Togo | 1974 | .tg | |
| ISO 3166-2:TH| | Thailand | 1974 | .th | |
| ISO 3166-2:TJ| | Tajikistan | 1992 | .tj | |
| ISO 3166-2:TK| | Tokelau | 1974 | .tk | Previous ISO country name: Tokelau Islands |
| ISO 3166-2:TL| | Timor-Leste | 2002 | .tl | Name changed from East Timor |
| ISO 3166-2:TM| | Turkmenistan | 1992 | .tm | |
| ISO 3166-2:TN| | Tunisia | 1974 | .tn | |
| ISO 3166-2:TO| | Tonga | 1974 | .to | |
| ISO 3166-2:TR| | Türkiye | 1974 | .tr | Previous ISO country name: Turkey |
| ISO 3166-2:TT| | Trinidad and Tobago | 1974 | .tt | |
| ISO 3166-2:TV| | Tuvalu | 1977 | .tv | |
| ISO 3166-2:TW| | Taiwan, Province of China | 1974 | .tw | Covers the current jurisdiction of the Republic of China ISO country name follows UN designation |
| ISO 3166-2:TZ| | Tanzania, United Republic of | 1974 | .tz | |
| ISO 3166-2:UA| | Ukraine | 1974 | .ua | Previous ISO country name: Ukrainian SSR Code assigned as the country was already a UN member since 1945 |
| ISO 3166-2:UG| | Uganda | 1974 | .ug | |
| ISO 3166-2:UM| | United States Minor Outlying Islands | 1986 | .um | Consists of nine minor insular areas of the United States: Baker Island, Howland Island, Jarvis Island, Johnston Atoll, Kingman Reef, Midway Islands, Navassa Island, Palmyra Atoll, and Wake Island ccTLD was revoked in 2007 The United States Department of State uses the following user assigned alpha-2 codes for the nine territories, respectively, XB, XH, XQ, XU, XM, QM, XV, XL and QW. |
| ISO 3166-2:US| | United States of America | 1974 | .us | Previous ISO country name: United States |
| ISO 3166-2:UY| | Uruguay | 1974 | .uy | |
| ISO 3166-2:UZ| | Uzbekistan | 1992 | .uz | |
| ISO 3166-2:VA| | Holy See | 1974 | .va | Covers Vatican City, territory of the Holy See Previous ISO country names: Vatican City State and Holy See |
| ISO 3166-2:VC| | Saint Vincent and the Grenadines | 1974 | .vc | |
| ISO 3166-2:VE| | Venezuela, Bolivarian Republic of | 1974 | .ve | Previous ISO country name: Venezuela |
| ISO 3166-2:VG| | Virgin Islands | 1974 | .vg | |
| ISO 3166-2:VI| | Virgin Islands | 1974 | .vi | |
| ISO 3166-2:VN| | Viet Nam | 1974 | .vn | ISO country name follows UN designation Code used for Republic of Viet Nam before 1977 |
| ISO 3166-2:VU| | Vanuatu | 1980 | .vu | Name changed from New Hebrides |
| ISO 3166-2:WF| | Wallis and Futuna | 1974 | .wf | Previous ISO country name: Wallis and Futuna Islands |
| ISO 3166-2:WS| | Samoa | 1974 | .ws | Code taken from former name: Western Samoa |
| ISO 3166-2:YE| | Yemen | 1974 | .ye | Previous ISO country name: Yemen, Republic of Code used for North Yemen before 1990 |
| ISO 3166-2:YT| | Mayotte | 1993 | .yt | |
| ISO 3166-2:ZA| | South Africa | 1974 | .za | Code taken from name in Dutch: Zuid-Afrika |
| ISO 3166-2:ZM| | Zambia | 1974 | .zm | |
| ISO 3166-2:ZW| | Zimbabwe | 1980 | .zw | Name changed from Southern Rhodesia |
User-assigned code elements
User-assigned code elements are codes at the disposal of users who need to add further names of countries, territories, or other geographical entities to their in-house application of ISO 3166-1, and the ISO 3166/MA will never use these codes in the updating process of the standard. The following alpha-2 codes can be user-assigned:, to, to, and. For example:- The International Standard Recording Code uses as a second country code for the United States, as it ran out of three-character registrant codes within the prefix. It also uses for some registrants assigned directly.
- The Unicode Common Locale Data Repository assigns to represent Outlying Oceania, and to represent "Unknown or Invalid Territory". Before the adoption of the macroregion code by ISO, CLDR also used to represent the European Union.
- The code is used by the World Intellectual Property Organization as an indicator for the Community Plant Variety Office.
- The code is used by Swiss Government as a country code for the Canary Islands, although is already reserved for that purpose.
- The codes and are used by Russian Government to represent Abkhazia and South Ossetia respectively.
- The code is used by the UK Government, as an EORI number country code prefix for Northern Ireland, and the members of European Union for European Union value added tax reports with trade with Northern Ireland.
- The code is used by the European Commission, the IMF, the SWIFT, the CLDR, and other organizations as a temporary country code for Kosovo.
- The code is used by WIPO as an indicator for the Nordic Patent Institute, an international organization common to Denmark, Iceland, Norway and Sweden.
- The code is used by WIPO as an indicator for the International Union for the Protection of New Varieties of Plants.
- The code is used by WIPO as an indicator for the Visegrad Patent Institute.
- The code is used by WIPO as an indicator for unknown states, other entities or organizations.
- UN/LOCODE assigns to represent installations in international waters.
Reserved code elements
Reserved code elements are codes which have become obsolete, or are required in order to enable a particular user application of the standard but do not qualify for inclusion in ISO 3166-1. To avoid transitional application problems and to aid users who require specific additional code elements for the functioning of their coding systems, the ISO 3166/MA, when justified, reserves these codes which it undertakes not to use for other than specified purposes during a limited or indeterminate period of time.The reserved alpha-2 codes are divided into the following three categories: exceptional reservations, transitional reservations, and indeterminate reservations.
Exceptional reservations
Exceptionally reserved code elements are codes reserved at the request of national ISO member bodies, governments and international organizations, which are required in order to support a particular application, as specified by the requesting body and limited to such use; any further use of such code elements is subject to approval by the ISO 3166/MA. The following alpha-2 codes are currently exceptionally reserved:| Code | Area name or country name | Current actual country | ccTLD | Notes |
| Ascension Island | United Kingdom | .ac | Reserved on request of UPU for stamp issuing area | |
| Clipperton Island | France | — | Reserved on request of ITU for location of certain telecommunications installations | |
| Island of Sark | United Kingdom | — | Reserved on request of the United Kingdom. Letters are derived from French name Sercq. | |
| Diego Garcia | United Kingdom | — | Reserved on request of ITU for location of certain telecommunications installations | |
| Ceuta, Melilla | Spain | — | Part of Spanish North Africa Reserved on request of WCO for Eurasian Patent Organization | |
| European Union | multiple | .eu | Reserved on request of ISO 4217/MA for the European monetary unit Euro Extended for ISO 6166 "Securities - International securities identification numbering system " in March 1998 Extended for any application needing to represent the name European Union in August 1999 | |
| Eurozone | multiple | — | Reserved on request of ISO 6166/RA for the European OTC derivatives within International securities identification numbering system | |
| France, Metropolitan | France | — | Reserved on request of France Officially assigned before deleted from ISO 3166-1 | |
| Canary Islands | Spain | — | Reserved on request of WCO for area not covered by European Union Customs arrangements. Code taken from name in Spanish: Islas Canarias | |
| USSR | multiple | .su | Reserved on request of the Foundation for Internet Development from June 2008; Transitionally reserved from September 1992 Officially assigned before deleted from ISO 3166-1 Official name and previous ISO country name: Union of Soviet Socialist Republics | |
| Tristan da Cunha | United Kingdom | — | Reserved on request of UPU for stamp issuing area | |
| United Kingdom | United Kingdom | .uk | Reserved on request of the United Kingdom lest be used for any other country Also used by the European Commission United Kingdom is officially assigned the alpha-2 code | |
| United Nations | multiple | — | Reserved directly by ISO 3166/MA for the United Nations |
The following alpha-2 codes were previously [|exceptionally reserved], but are now officially assigned:
| Code | Area name or country name | Notes |
| Åland Islands | Reserved on request of Finland | |
| Guernsey | Reserved on request of UPU for stamp issuing area | |
| Isle of Man | Reserved on request of UPU for stamp issuing area | |
| Jersey | Reserved on request of UPU for stamp issuing area |
Transitional reservations
Transitional reserved code elements are codes reserved after their deletion from ISO 3166-1. These codes may be used only during a transitional period of at least five years while new code elements that may have replaced them are taken into use. These codes may be reassigned by the ISO 3166/MA after the expiration of the transitional period. The following alpha-2 codes are currently transitionally reserved:| Code | Formerly used country name | Reserved from | Reserved to | ccTLD | Notes | |
| ISO 3166-2:AN| | Netherlands Antilles | 2010-12 | 2060-12 | .an | ISO 3166-3#ANHH| | Divided into , and |
| Burma | 1989-12 | 2039-12 | — | ISO 3166-3#BUMM| | Name changed to Myanmar | |
| ISO 3166-2:CS| | Originally Czechoslovakia, later Serbia and Montenegro | 2006-09 | 2056-09 | — | ISO 3166-3#CSHH| ISO 3166-3#CSXX| | Code taken from name in Serbian: Srbija i Crna Gora, for Serbia and Montenegro, which however is now divided into Montenegro and Serbia. originally represented Czechoslovakia. Its successor state Czechia uses, and Slovakia. |
| Neutral Zone | 1993-07 | 2043-07 | — | ISO 3166-3#NTHH| | Divided between Iraq and Saudi Arabia | |
| ISO 3166-2:TP| | East Timor | 2002-05 | 2052-05 | .tp | ISO 3166-3#TPTL| | Code taken from previous ISO country name: Portuguese Timor, name changed to Timor-Leste |
| ISO 3166-2:YU| | Yugoslavia | 2003-07 | 2053-07 | — | ISO 3166-3#YUCS| | Code used for the Socialist Federal Republic of Yugoslavia before 1992 and the Federal Republic of Yugoslavia after 1992 |
| Zaire | 1997-07 | 2047-07 | — | ISO 3166-3#ZRCD| | Name changed to Congo, the Democratic Republic of the ccTLD has been deleted |
The following alpha-2 code was previously [|transitionally reserved], but was later reassigned to another country as its official code:
| Code | Formerly used country name | Date of reservation | ccTLD | Notes | |
| Czechoslovakia | 1993-06 | — | ISO 3166-3#CSHH| | Code reassigned to Serbia and Montenegro ccTLD has been deleted |
For each deleted alpha-2 code, an entry for the corresponding former country name is included in ISO 3166-3. Each entry is assigned a four-letter alphabetic code, where the first two letters are the deleted alpha-2 code.
Indeterminate reservations
Indeterminately reserved code elements are reserved for use in a particular way, usually due to their presence in other coding systems. For example, several codes are reserved because they are used for international intellectual property organizations in WIPO Standard ST.3. The following alpha-2 codes are currently indeterminately reserved:The following alpha-2 codes were previously [|indeterminately reserved], but have been reassigned to another country as its official code:
| Code | Area name or country name | Current code | Notes | Code reassigned to |
| Libya Tripoli | Lithuania | |||
| Western Sahara | Montenegro | |||
| Burundi | Russian Federation |
Deleted codes
Besides the codes currently transitionally reserved and two other codes currently exceptionally reserved, the following alpha-2 codes have also been deleted from ISO 3166-1:| Code | Formerly used country name | Notes | |
| French Afars and Issas | ISO 3166-3#AIDJ| | Code later reassigned to Anguilla | |
| British Antarctic Territory | ISO 3166-3#BQAQ| | Code later reassigned to Bonaire, Sint Eustatius and Saba | |
| Canton and Enderbury Islands | ISO 3166-3#CTKI| | ||
| German Democratic Republic | ISO 3166-3#DDDE| | Code taken from name in German: Deutsche Demokratische Republik Common name: East Germany | |
| Dahomey | ISO 3166-3#DYBJ| | Name changed to Benin The code is now indeterminately reserved. | |
| French Southern and Antarctic Territories | ISO 3166-3#FQHH| | See and. | |
| Gilbert Islands | ISO 3166-3#GEHH| | Code later reassigned to Georgia | |
| Upper Volta | ISO 3166-3#HVBF| | Code taken from name in French: Haute-Volta | |
| Johnston Island | ISO 3166-3#JTUM| | Common name: Johnston Atoll | |
| Midway Islands | ISO 3166-3#MIUM| | ||
| New Hebrides | ISO 3166-3#NHVU| | ||
| Dronning Maud Land | ISO 3166-3#NQAQ| | A dependent territory of Norway | |
| Pacific Islands | ISO 3166-3#PCHH| | ||
| United States Miscellaneous Pacific Islands | ISO 3166-3#PUUM| | Consisted of Baker Island, Howland Island, Jarvis Island, Kingman Reef, and Palmyra Atoll | |
| Panama Canal Zone | ISO 3166-3#PZPA| | ||
| Southern Rhodesia | ISO 3166-3#RHZW| | Name used by country itself: Rhodesia | |
| Sikkim | ISO 3166-3#SKIN| | Code later reassigned to Slovakia | |
| Viet-Nam, Democratic Republic of | ISO 3166-3#VDVN| | Common name: North Vietnam | |
| Wake Island | ISO 3166-3#WKUM| | ||
| Yemen, Democratic | ISO 3166-3#YDYE| | Common name: South Yemen |
For each deleted alpha-2 code, an entry for the corresponding former country name is included in ISO 3166-3. Each entry is assigned a four-letter alphabetic code, where the first two letters are the deleted alpha-2 code.