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Table is a modified version of the Country code top-level domain Wikipedia article.
| Name | Entity | Explanation | Notes |
|---|---|---|---|
| .ac | File:Flag of Ascension Island.svg Ascension Island (United Kingdom) | Ascension Island | Commonly used for academic websites, such as universities. However, .ac is not to be confused with the official academic domains used by several countries such as the United Kingdom (.ac.uk), India (.ac.in) or Indonesia (.ac.id). Also used in the accounting, consulting, and air-conditioning industries. |
| .ad | File:Flag of Andorra.svg Andorra | Andorra | Local trademark, trade name or citizenship required. |
| .ae | File:Flag of United Arab Emirates.svg United Arab Emirates | United Arab Emirates | |
| .af |  Afghanistan |
Afghanistan | |
| .ag | File:Flag of Antigua and Barbuda.svg Antigua and Barbuda | Antigua and Barbuda | Also unofficially used by German businesses (where AG is an abbreviation of Aktiengesellschaft). |
| .ai | File:Flag of Anguilla.svg Anguilla (United Kingdom) | Anguilla | Also unofficially used by tech companies specializing in AI (Artificial Intelligence). |
| .al | File:Flag of Albania.svg Albania | Albania | Citizenship no longer required. |
| .am | File:Flag of Armenia.svg Armenia | Armenia | |
| .ao | File:Flag of Angola.svg Angola | Angola | |
| .aq | File:Flag of Antarctica.svg Antarctica | Antarctique | Antarctic Treaty as everything south of 60th parallel south|latitude 60°S. AQ domain names are available to government organizations who are signatories to the Antarctic Treaty and to other registrants who have a physical presence in Antarctica. |
| .ar | File:Flag of Argentina.svg Argentina | Argentina | |
| .as | File:Flag of American Samoa.svg American Samoa (United States) | American Samoa | In some countries, like Norway and Denmark, "AS" or "A/S" is used as an abbreviation for stock-based or limited companies. Such companies will often make use of the domain. Also unofficially used by the Principality of Asturias, Spain. |
| .at | File:Flag of Austria.svg Austria | Austria | |
| .au | File:Flag of Australia.svg Australia | Australia | Restrictions apply. In general, registrants must have an "Australian presence", and can be registered anywhere between 1 and 5 years. Includes Ashmore and Cartier Islands and Coral Sea Islands. Direct second-level domain registration (marketed as ".au Direct") has been made available commencing 24 March 2022. |
| .aw | File:Flag of Aruba.svg Aruba (Kingdom of the Netherlands) | Aruba, West Indies | Restricted to registered Aruban companies, organisations and citizens |
| .ax | File:Flag of Åland.svg Åland (Finland) | .al and .ad already allocated | |
| .az | File:Flag of Azerbaijan.svg Azerbaijan | Azerbaijan | |
| .ba | File:Flag of Bosnia and Herzegovina.svg Bosnia and Herzegovina | Bosnia and Herzegovina | |
| .bb | File:Flag of Barbados.svg Barbados | Barbados | |
| .bd | File:Flag of Bangladesh.svg Bangladesh | Bangladesh | For individuals, registrant must have a valid NID. For companies, registrant must have company or trademark registered in Bangladesh. |
| .be | File:Flag of Belgium.svg Belgium | Belgium | Also unofficially used in the Canton of Bern, Switzerland |
| .bf | File:Flag of Burkina Faso.svg Burkina Faso | Burkina Faso | |
| .bg | File:Flag of Bulgaria.svg Bulgaria | Bulgaria | .бг is .bg in cyrillic) for IDN ccTLD |
| .bh | File:Flag of Bahrain.svg Bahrain | Bahrain | |
| .bi | File:Flag of Burundi.svg Burundi | Burundi | |
| .bj | File:Flag of Benin.svg Benin | .be, .bn, and .bi already allocated | |
| .bm | File:Flag of Bermuda.svg Bermuda (United Kingdom) | Bermuda | Local corporate registration required |
| .bn | File:Flag of Brunei.svg Brunei | Brunei | |
| .bo | File:Flag of Bolivia.svg Bolivia | Bolivia | |
| .bq | File:Flag of Bonaire.svg Bonaire File:Flag of Saba.svg Saba File:Flag of Sint Eustatius.svg Sint Eustatius |
.be and .bs already allocated | |
| .br | File:Flag of Brazil.svg Brazil | Brasil | Restricted. Registration is done under several categories (i.e.: .edu.br for higher education institutions, gov.br for government agencies, etc.). |
| .bs | File:Flag of The Bahamas.svg Bahamas | Bahamas | |
| .bt | File:Flag of Bhutan.svg Bhutan | Bhutan | Must have local presence in Bhutan, and valid trade license. |
| .bw | File:Flag of Botswana.svg Botswana | Botswana | May also be used for the Province of Walloon Brabant, Wallonia, Belgium. |
| .by | File:Flag of Belarus.svg Belarus | Byelorussia | Also unofficially used to denote Bayern (Bavaria), Germany. |
| .bz | File:Flag of Belize.svg Belize | Belize | Also unofficially used in the province of Bozen (or South Tyrol). |
| .ca | File:Flag of Canada.svg Canada | Canada | Subject to Canadian Presence Requirements]]. Also unofficially used by some websites in the U.S. state of California. |
| .cc | File:Flag of Cocos (Keeling) Islands.svg Cocos (Keeling) Islands | Cocos Islands | Australian territory: not to be confused with Cocos islands in Guam. Currently marketed as global domain, registration allowed worldwide, local presence not required; the domain is currently operated by eNIC, a VeriSign company. |
| .cd | File:Flag of Democratic Republic of the Congo.svg Democratic Republic of the Congo | Congo, Democratic Republic | Also unofficially used for Compact disc-related domains. |
| .cf | File:Flag of Central African Republic.svg Central African Republic | Central African Republic | Also used as a free domain service to the public. |
| .cg | File:Flag of Republic of the Congo.svg Republic of the Congo | Congo | |
| .ch | File:Flag of Switzerland.svg Switzerland | Confoederatio Helvetica | |
| .ci | File:Flag of Côte d'Ivoire.svg Côte d'Ivoire | Côte d'Ivoire | |
| .ck | File:Flag of Cook Islands.svg Cook Islands | Cook Islands | |
| .cl | File:Flag of Chile.svg Chile | Chile | |
| .cm | File:Flag of Cameroon.svg Cameroon | Cameroon | A local entity/company in Cameroon is required to register a domain name. |
| .cn | File:Flag of China.svg China | China | A local company in China is required to register a domain name, or for personal registrations a valid Resident Identity Card. Hong Kong and Macau also maintain TLDs.
Also unofficially used for Cartoon Network]-related domains. |
| .co | File:Flag of Colombia.svg Colombia | Colombia | Marketed as a global domain. Anyone can register. |
| .cr | File:Flag of Costa Rica.svg Costa Rica | Costa Rica | |
| .cu | File:Flag of Cuba.svg Cuba | Cuba | |
| .cv | File:Flag of Cabo Verde.svg Cabo Verde | Cape Verde | Also unofficially used for curriculum vitae-related domains. |
| .cw | File:Flag of Curaçao.svg Curaçao (Kingdom of the Netherlands) | Curaçao, West Indies | |
| .cx | File:Flag of Christmas Island.svg Christmas Island | Christmas Xmas | Made infamous from Goatse.cx. |
| .cy | File:Flag of Cyprus.svg Cyprus | Cyprus | |
| .cz | File:Flag of Czech Republic.svg Czech Republic | Czech | |
| .de | File:Flag of Germany.svg Germany | Deutschland | German postal address for administrative contact (admin-c) required. Proxy registrations are allowed. |
| .dj | File:Flag of Djibouti.svg Djibouti | Djibouti | Also unofficially used by disc jockeys. |
| .dk | File:Flag of Denmark.svg Denmark | Danmark | |
| .dm] | File:Flag of Dominica.svg Dominica | Dominica | |
| .do | File:Flag of Dominican Republic.svg Dominican Republic | Dominican | |
| .dz | File:Flag of Algeria.svg Algeria | El Djazair / Dzayer | |
| .ec | File:Flag of Ecuador.svg Ecuador | Ecuador | In Japan, "EC" is used as an acronym for "electronic commerce". Because of that, it's used unofficially by companies dedicated to provide online stores like BASE, a company that has two domains related to e-commerce: "base.in" and "official.ec". |
| .ee | File:Flag of Estonia.svg Estonia | Eesti | |
| .eg | File:Flag of Egypt.svg Egypt | Egypt | |
| .eh | File:Flag of Western Sahara.svg Western Sahara | Español Sahara | Unassigned |
| .er | File:Flag of Eritrea.svg Eritrea | Eritrea | |
| .es | File:Flag of Spain.svg Spain | España | |
| .et | File:Flag of Ethiopia.svg Ethiopia | Ethiopia | |
| .eu | File:Flag of European Union.svg European Union | Europe | Restricted to legal and natural persons in European Union member states. Previously unofficially used for sites in the Basque language, but now .eus is in official use. |
| .fi | File:Flag of Finland.svg Finland | Finland | Registration allowed worldwide, local presence not required. |
| .fj | File:Flag of Fiji.svg Fiji | Fiji | |
| .fk | File:Flag of Falkland Islands.svg Falkland Islands (United Kingdom) | Falkland | |
| .fm | File:Flag of Federated States of Micronesia.svg Federated States of Micronesia | Federated States of Micronesia | Also unofficially used by FM radio stations, podcasts or related business. |
| .fo | File:Flag of Faroe Islands.svg Faroe Islands (Kingdom of Denmark) | Føroyar | |
| .fr |  France |
France | Restricted to individuals and companies in European Union, Switzerland, Norway, Iceland and Liechtenstein. |
| .ga | File:Flag of Gabon.svg Gabon | Gabon | Also used as a free domain service to the public. |
| .gd | File:Flag of Grenada.svg Grenada | Grenada | |
| .ge | File:Flag of Georgia.svg Georgia | Georgia | Available for registration for residents of Georgia (unlimited) or for foreign companies via representation of any local legal person (one domain name per registrant). |
| .gf | File:Flag of French Guiana.svg French Guiana (France) | Guyane Française | |
| .gg | File:Flag of Guernsey.svg Bailiwick of Guernsey | .gu, .gs, and .gy already allocated | Also unofficially used by video game related websites. |
| .gh | File:Flag of Ghana.svg Ghana | Ghana | |
| .gi | File:Flag of Gibraltar.svg Gibraltar (United Kingdom) | Gibraltar | |
| .gl | File:Flag of Greenland.svg Greenland (Kingdom of Denmark) | Greenland | Previously also unofficially used in Galicia, Spain, but now .gal has been approved for such use and was implemented in mid-2014 . |
| .gm | File:Flag of The Gambia.svg The Gambia | Gambia | Domain name should match the domain owners name or trademarks. Common nouns are blocked. |
| .gn | File:Flag of Guinea.svg Guinea | Guinea | A local contact is required |
| .gp | File:Flag of Guadeloupe.svg Guadeloupe (France) | Guadeloupe | Still used for Saint Barthélemy and Saint Martin. |
| .gq | File:Flag of Equatorial Guinea.svg Equatorial Guinea | Guinée équatoriale | Also used as a free domain service to the public. |
| .gr | File:Flag of Greece.svg Greece | Greece | |
| .gs | File:Flag of South Georgia and the South Sandwich Islands.svg South Georgia and the South Sandwich Islands (United Kingdom) | South Georgia and the South Sandwich Islands | |
| .gt | File:Flag of Guatemala.svg Guatemala | Guatemala | |
| .gu | File:Flag of Guam.svg Guam (United States) | Guam | Registry has been closed since 2017. |
| .gw | File:Flag of Guinea-Bissau.svg Guinea-Bissau | Gine-Bisaawo | |
| .gy | File:Flag of Guyana.svg Guyana | Guyana | |
| .hk | File:Flag of Hong Kong.svg Hong Kong | Hong Kong | |
| .hm | File:Flag of Australia.svg Heard Island and McDonald Islands | Heard Island and McDonald Islands | Unused for its intended purposes (islands are uninhabited and government sites instead use .aq); registry open to the public. |
| .hn | File:Flag of Honduras.svg Honduras | Honduras | |
| .hr | File:Flag of Croatia.svg Croatia | Hrvatska | |
| .ht | File:Flag of Haiti.svg Haiti | Haiti | |
| .hu | File:Flag of Hungary.svg Hungary | Hungary | Citizens of the European Union or entities established by law within the territory of the EU. |
| .id | File:Flag of Indonesia.svg Indonesia | Indonesia | Restricted to Indonesian companies (co.id), organisations (or.id), academic (ac.id & sch.id), and citizens (biz.id, my.id & web.id). Second-level domains are becoming available now and opened to general registration on 17 August 2014. |
| .ie | File:Flag of Ireland.svg Ireland | Ireland | In 2002, registration was expanded to include persons or businesses with a "real and substantive" connection with the island of Ireland (including Northern Ireland). |
| .il | File:Flag of Israel.svg Israel | Israel | |
| .im | File:Flag of Isle of Man.svg Isle of Man | Isle of Man | |
| .in | File:Flag of India.svg India | India | Under INRegistry since April 2005 (except for gov.in, nic.in, mil.in, ac.in, edu.in, res.in). |
| .io | File:Flag of British Indian Ocean Territory.svg British Indian Ocean Territory (United Kingdom) | Indian Ocean | Used unofficially by technology companies, startups, and web applications because IO can be an acronym for input/output that is useful for domain hacks. |
| .iq | File:Flag of Iraq.svg Iraq | Iraq | |
| .ir | File:Flag of Iran.svg Iran | Iran | |
| .is | File:Flag of Iceland.svg Iceland | Ísland | Also unofficially used and marketed as a domain hack (for example it.is, that.is, etc.). |
| .it | File:Flag of Italy.svg Italy | Italy | Restricted to companies and individuals in the European Union. |
| .je | File:Flag of Jersey.svg Jersey | Jersey | |
| .jm | File:Flag of Jamaica.svg Jamaica | Jamaica | |
| .jo | File:Flag of Jordan.svg Jordan | Jordan | |
| .jp | File:Flag of Japan.svg Japan | Japan | Restricted to individuals or companies with a physical address in Japan. |
| .ke | File:Flag of Kenya.svg Kenya | Kenya | |
| .kg | File:Flag of Kyrgyzstan.svg Kyrgyzstan | Kyrgyzstan | |
| .kh | File:Flag of Cambodia.svg Cambodia | Khmer | |
| .ki | File:Flag of Kiribati.svg Kiribati | Kiribati | |
| .km | File:Flag of Comoros.svg Comoros | Komori | |
| .kn | File:Flag of Saint Kitts and Nevis.svg Saint Kitts and Nevis | Saint Kitts and Nevis | |
| .kp | File:Flag of North Korea.svg North Korea | Korea Democratic People's Republic | Restricted to companies, organizations, or government entities based in North Korea. Despite this, few domains are actually registered because of internet censorship in North Korea. |
| .kr | File:Flag of South Korea.svg South Korea | Korea Republic | |
| .kw | File:Flag of Kuwait.svg Kuwait | Kuwait | |
| .ky | File:Flag of Cayman Islands.svg Cayman Islands (United Kingdom) | .ci and .cy already allocated | |
| .kz | File:Flag of Kazakhstan.svg Kazakhstan | Kazak | |
| .la | File:Flag of Laos.svg Laos | Lao | Currently being marketed as the unofficial domain for Los Angeles. |
| .lb | File:Flag of Lebanon.svg Lebanon | Lebanon | Restricted to registration with a company in Lebanon. |
| .lc | File:Flag of Saint Lucia.svg Saint Lucia | Saint Lucia | |
| .li | File:Flag of Liechtenstein.svg Liechtenstein | Liechtenstein | Also unofficially used by entities on[Long Island, New York or people with the last name Li. In Russian, li can be used to create domain names that mean a verb with a past tense plural ending li . |
| .lk | File:Flag of Sri Lanka.svg Sri Lanka | Sri Lanka | |
| .lr | File:Flag of Liberia.svg Liberia | Liberia | |
| .ls | File:Flag of Lesotho.svg Lesotho | Lesotho | |
| .lt | File:Flag of Lithuania.svg Lithuania | Lithuania | |
| .lu | File:Flag of Luxembourg.svg Luxembourg | Luxembourg | Also unofficially used in Lucerne, Switzerland. |
| .lv | File:Flag of Latvia.svg Latvia | Latvia | |
| .ly | File:Flag of Libya.svg Libya | Libya | Used unofficially as a domain hack for words ending in -ly. |
| .ma | File:Flag of Morocco.svg Morocco | Maroc | |
| .mc | File:Flag of Monaco.svg Monaco | Monaco | Only for companies with a trademark registered in Monaco. |
| .md | File:Flag of Moldova.svg Moldova | Moldova | Restricted to individuals or companies with a physical address in Moldova. |
| .me | File:Flag of Montenegro.svg Montenegro | Montenegro | Also unofficially used and marketed as a domain hack (for example love.me, meet.me, etc.). |
| .mg | File:Flag of Madagascar.svg Madagascar | Madagascar | Restricted to registration with a company in Madagascar. |
| .mh | File:Flag of Marshall Islands.svg Marshall Islands | Marshall | |
| .mk | File:Flag of North Macedonia.svg North Macedonia | Makedonija | Restricted to registration with a company in North Macedonia. |
| .ml | File:Flag of Mali.svg Mali | Mali | Also used as a free domain service to the public. |
| .mm | File:Flag of Myanmar.svg Myanmar | Myanmar | |
| .mn | File:Flag of Mongolia.svg Mongolia | Mongolia | The second-level domains .gov.mn, .org.mn, and .edu.mn are reserved for special use. |
| .mo | File:Flag of Macau.svg Macau | Macao | Registrants must have a registered business in Macau, with the same name as the domain they wish to register. |
| .mp | File:Flag of Northern Mariana Islands.svg Northern Mariana Islands (United States) | Marianas Pacific | |
| .mq | File:Flag of Martinique.svg Martinique (France) | Martinique | |
| .mr | File:Flag of Mauritania.svg Mauritania | Mauritania | Also unofficially used for Mr.-related domains. |
| .ms | File:Flag of Montserrat.svg Montserrat (United Kingdom) | Montserrat | Also unofficially used for Microsoft-related domains. |
| .mt | File:Flag of Malta.svg Malta | Malta | |
| .mu | File:Flag of Mauritius.svg Mauritius | Mauritius | |
| .mv | File:Flag of Maldives.svg Maldives | Maldives | |
| .mw | File:Flag of Malawi.svg Malawi | Malawi | |
| .mx | File:Flag of Mexico.svg Mexico | Mexico | |
| .my | File:Flag of Malaysia.svg Malaysia | Malaysia | Restricted to registration by an individual or company in Malaysia. |
| .mz | File:Flag of Mozambique.svg Mozambique | Mozambique | |
| .na | File:Flag of Namibia.svg Namibia | Namibia | |
| .nc | File:Flag of New Caledonia.svg New Caledonia (France) | New Caledonia | Restricted to companies that have a New Caledonian Business Registration Certificate or individuals living in New Caledonia for at least 6 months. |
| .ne | File:Flag of Niger.svg Niger | Niger | Also unofficially used and marketed as a Lithuanian-language domain hack (for example o.ne, kaip.ne, etc.). |
| .nf | File:Flag of Norfolk Island.svg Norfolk Island | Norfolk | |
| .ng | File:Flag of Nigeria.svg Nigeria | Nigeria | |
| .ni | File:Flag of Nicaragua.svg Nicaragua | Nicaragua | |
| .nl | File:Flag of Netherlands.svg Netherlands | Netherlands | First active country-code domain outside the US. |
| .no | File:Flag of Norway.svg Norway | Norway | Businesses and professionals must be registered as an approved type of organization in the Brønnøysund Register Centre. Individual applicants must be of age (18 years) and be registered in Folkeregisteret. All applicants must have a Norwegian postal address.
Also unofficially used and marketed as a domain hack (for example oh.no, what.no, etc.). |
| .np | File:Flag of Nepal.svg Nepal | Nepal | All .np domains are free to register for individuals and registered businesses. Foreign businesses must provide proof of local presence in Nepal. |
| .nr | File:Flag of Nauru.svg Nauru | Nauru | Was previously used as a free domain service to the public as co.nr. |
| .nu | File:Flag of Niue.svg Niue | Niue | Commonly used by Danish, Dutch, and Swedish websites, because in those languages "nu" means "now". |
| .om | File:Flag of Oman.svg Oman | Oman | Registrant must have company or trademark registered in Oman as well as a local administrative contact. |
| .pa | File:Flag of Panama.svg Panama | Panama | Some use in Pennsylvania |
| .pe | File:Flag of Peru.svg Peru | Peru | Also unofficially used for Private Equity related businesses. |
| .pf | File:Flag of French Polynesia.svg French Polynesia (France) | Polynésie française | With Clipperton Island. |
| .pg | File:Flag of Papua New Guinea.svg Papua New Guinea | Papua New Guinea | |
| .ph | File:Flag of Philippines.svg Philippines | Philippines | |
| .pk | File:Flag of Pakistan.svg Pakistan | Pakistan | Operated by PKNIC since 1992 . |
| .pl | File:Flag of Poland.svg Poland | Poland | |
| .pm | Saint-Pierre and Miquelon (France) |
Saint Pierre and Miquelon | Restricted to individuals and companies in European Union, Switzerland, Norway, Iceland, and Liechtenstein. |
| .pn | File:Flag of Pitcairn Islands.svg Pitcairn Islands (United Kingdom) | Pitcairn | As a part of a marketing campaign, Lionsgate used the TLD for some (now defunct) sites related to The Hunger Games franchise, presenting it as the "official" country code of the fictional nation of Panem, notable sites included thecapitol.pn and revolution.pn. |
| .pr | File:Flag of Puerto Rico.svg Puerto Rico (United States) | Puerto Rico | |
| .ps | File:Flag of Palestine.svg Palestine | Palestine | Jerusalem, West Bank, and Gaza Strip. |
| .pt | File:Flag of Portugal.svg Portugal | Portugal | |
| .pw | File:Flag of Palau.svg Palau | Pelew | |
| .py | File:Flag of Paraguay.svg Paraguay | Paraguay | |
| .qa | File:Flag of Qatar.svg Qatar | Qatar | |
| .re | File:Flag of Réunion.svg Réunion (France) | Réunion | Restricted to individuals and companies in European Union, Switzerland, Norway, Iceland and Liechtenstein. |
| .ro | File:Flag of Romania.svg Romania | Romania | |
| .rs | File:Flag of Serbia.svg Serbia | Republika Srbija | See also .срб (.srb in Cyrillic). Also unofficially used for Rust (programming language)-related domains. |
| .ru | File:Flag of Russia.svg Russia | Russia | See also .su, still in use, and .рф, for IDN. |
| .rw | File:Flag of Rwanda.svg Rwanda | Rwanda | |
| .sa | File:Flag of Saudi Arabia.svg Saudi Arabia | Saudi Arabia | Registrant must have a registered trademark in Saudi Arabia matching the domain name to register or provide company incorporation documents of a company in Saudi Arabia or for personal registrations a copy of valid ID. A letter on the official letterhead of your organization addressed to SaudiNIC requesting the domain name registration is also required. Local administrative contact required. 2LD registrations rolled out in 2011. |
| .sb | File:Flag of Solomon Islands.svg Solomon Islands | Solomon Islands, British | Also unofficially used for SpongeBob SquarePants-related domains. |
| .sc | File:Flag of Seychelles.svg Seychelles | Seychelles | Also unofficially used for Snapchat-related domains. |
| .sd | File:Flag of Sudan.svg Sudan | Sudan | |
| .se | File:Flag of Sweden.svg Sweden | Sweden | |
| .sg | File:Flag of Singapore.svg Singapore | Singapore | Also unofficially used in the Canton of St. Gallen, Switzerland. |
| .sh | File:Flag of United Kingdom.svg Saint Helena, Ascension and Tristan da Cunha (United Kingdom) | Saint Helena | |
| .si | File:Flag of Slovenia.svg Slovenia | Slovenia | |
| .sk | File:Flag of Slovakia.svg Slovakia | Slovak | Restricted to Slovak companies, organisations, and citizens. |
| .sl | File:Flag of Sierra Leone.svg Sierra Leone | Sierra Leone | |
| .sm | File:Flag of San Marino.svg San Marino | San Marino | Domain name must be same as company name or trademark. |
| .sn | File:Flag of Senegal.svg Senegal | Senegal | Registration allowed for compamies only. Individuals are not allowed to register. |
| .so | File:Flag of Somalia.svg Somalia | Somalia | Relaunched on 1 November 2010. |
| .sr | File:Flag of Suriname.svg Suriname | Suriname | |
| .ss | File:Flag of South Sudan.svg South Sudan | South Sudan | Added to the DNS root zone in February 2019. Registry is not yet available. |
| .st | File:Flag of São Tomé and Príncipe.svg São Tomé and Príncipe | São Tomé | Also unofficially used in South Tyrol (or province of Bozen). |
| .su | File:Flag of Russia.svg Soviet Union | Soviet Union | Still in use. Also unofficially used by Student Unions. |
| .sv | File:Flag of El Salvador.svg El Salvador | Salvador | |
| .sx | File:Flag of Sint Maarten.svg Sint Maarten (Kingdom of the Netherlands) | .sm, .ma, and .mt already allocated. | |
| .sy | File:Flag of Syria.svg Syria | Syria | |
| .sz | File:Flag of Eswatini.svg Eswatini | Swaziland | Registration is restricted to Eswatini organizations with Eswatini Trading Licenses. |
| .tc | File:Flag of Turks and Caicos Islands.svg Turks and Caicos Islands (United Kingdom) | Turks
Caicos |
Also marketed in Turkey. The official abbreviation of 'Türkiye Cumhuriyeti' (Republic of Turkey) is TC. |
| .td | File:Flag of Chad.svg Chad | Tchad | Available for registration to entities connected with Chad only. |
| .tf | File:Flag of French Southern and Antarctic Lands.svg French Southern and Antarctic Lands | Terres australes et antarctiques françaises | Seldom used. Restricted to individuals and companies in European Union, Switzerland, Norway, Iceland, and Liechtenstein. Domains must be longer than two characters. The domain also sees frequent use for community-run sites related to the video game Team Fortress 2. |
| .tg | File:Flag of Togo.svg Togo | Togo | |
| .th | File:Flag of Thailand.svg Thailand | Thai | |
| .tj | File:Flag of Tajikistan.svg Tajikistan | Tajik | |
| .tk | File:Flag of Tokelau.svg Tokelau | Tokelau | Also used as a free domain service to the public. |
| .tl | File:Flag of East Timor.svg East Timor | Timor-Leste | Old code .tp has been deactivated since 2015. |
| .tm | File:Flag of Turkmenistan.svg Turkmenistan | Turkmen | |
| .tn | File:Flag of Tunisia.svg Tunisia | Tunisia | Currently being marketed as the unofficial domain for Tamil Nadu. |
| .to | File:Flag of Tonga.svg Tonga | Tonga | Often used unofficially for Torrent, Turin (Torino in Italian), Toronto, Tokyo, or Tocantins, and also as a domain hack in Slavic languages (to meaning it). |
| .tr | File:Flag of Türkiye.svg Türkiye | Turkey | .ct.tr and .nc.tr used by Northern Cyprus. |
| .tt | File:Flag of Trinidad and Tobago.svg Trinidad and Tobago | Trinidad
Tobago || | |
| .tv | File:Flag of Tuvalu.svg Tuvalu | Tuvalu | Used as an abbreviation of television, the domain is currently operated by dotTV, a VeriSign company; the Tuvalu government owns twenty percent of the company. |
| .tw | File:Flag of Taiwan.svg Taiwan | Taiwan | Registration allowed worldwide, local presence not required. In line with ISO 3166-1, IANA's official position is that "TW" is "designated for use to represent "Taiwan." |
| .tz | File:Flag of Tanzania.svg Tanzania | Tanzania | Must have a presence in Tanzania. |
| .ua | File:Flag of Ukraine.svg Ukraine | Ukraina | Ukrainian trademark required. |
| .ug | File:Flag of Uganda.svg Uganda | Uganda | |
| .uk | File:Flag of United Kingdom.svg United Kingdom | United Kingdom | The ISO 3166-1 code for the United Kingdom is GB. UK is a specially reserved ISO 3166-1 code. However, the creation of the .uk TLD predates the ISO 3166-1 list of ccTLD and is the primary TLD for the United Kingdom. |
| .us | File:Flag of United States.svg United States | United States | Registrants must be United States citizens, residents, or organizations, or a foreign entity with a presence in the United States. Formerly commonly used by U.S. State and local governments. |
| .uy | File:Flag of Uruguay.svg Uruguay | Uruguay | 2LD rollout began on 10 July 2012. |
| .uz | File:Flag of Uzbekistan.svg Uzbekistan | Uzbek | |
| .va | File:Flag of Vatican City.svg Vatican City | Vatican | Limited to the official sites of the Holy See (including those of the Vatican City State). |
| .vc | File:Flag of Saint Vincent and the Grenadines.svg Saint Vincent and the Grenadines | Vincent | |
| .ve | File:Flag of Venezuela.svg Venezuela | Venezuela | Registration is at the third level. |
| .vg | File:Flag of British Virgin Islands.svg British Virgin Islands (United Kingdom) | Virgin Islands | |
| .vi | File:Flag of United States Virgin Islands.svg United States Virgin Islands (United States) | Virgin Islands | |
| .vn | File:Flag of Vietnam.svg Vietnam | Vietnam | |
| .vu | File:Flag of Vanuatu.svg Vanuatu | Vanuatu | |
| .wf | File:Flag of Wallis and Futuna.svg Wallis and Futuna | Wallis
Futuna |
Restricted to individuals and companies in European Union, Switzerland, Norway, Iceland, and Liechtenstein. |
| .ws | File:Flag of Samoa.svg Samoa | Western Samoa | Marketed for use in general Websites. |
| .ye | File:Flag of Yemen.svg Yemen | Republic of Yemen | |
| .yt | File:Flag of Mayotte.svg Mayotte | Mayotte | Restricted to individuals and companies in European Union, Switzerland, Norway, Iceland and Liechtenstein. Also unofficially used for YouTube-related domains. |
| .za | File:Flag of South Africa.svg South Africa | Zuid-Afrika | |
| .zm | File:Flag of Zambia.svg Zambia | Zambia | |
| .zw | File:Flag of Zimbabwe.svg Zimbabwe | Zimbabwe |
_Islands.svg){kind=link}
