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| Country | 2-letter | 3-letter | Capital |
|---|---|---|---|
| Afghanistan | af | AFG | Kabul |
| Albania | al | ALB | Tirana |
| Algeria | dz | DZA | Algiers |
| American Samoa | as | ASM | Pago Pago |
| Andorra | ad | AND | Andorra |
| Angola | ao | AGO | Luanda |
| Anguilla | ai | AIA | The Valley |
| Antarctica | aq | ATA | None |
| Antigua and Barbuda | ag | ATG | St. Johns |
| Argentina | ar | ARG | Buenos Aires |
| Armenia | am | ARM | Yerevan |
| Aruba | aw | ABW | Oranjestad |
| Australia | au | AUS | Canberra |
| Austria | at | AUT | Vienna |
| Azerbaijan | az | AZE | Baku |
| Bahamas | bs | BHS | Nassau |
| Bahrain | bh | BHR | Al-Manamah |
| Bangladesh | bd | BGD | Dhaka |
| Barbados | bb | BRB | Bridgetown |
| Belarus | by | BLR | Minsk |
| Belgium | be | BEL | Brussels |
| Belize | bz | BLZ | Belmopan |
| Benin | bj | BEN | Porto-Novo |
| Bermuda | bm | BMU | Hamilton |
| Bhutan | bt | BTN | Thimphu |
| Bolivia | bo | BOL | La Paz |
| Bonaire, Sint Eustatius and Saba | bq | BES | Kralendijk |
| Bosnia-Herzegovina | ba | BIH | Sarajevo |
| Botswana | bw | BWA | Gaborone |
| Bouvet Island | bv | BVT | None |
| Brazil | br | BRA | Brasilia |
| British Indian Ocean Territory | io | IOT | None |
| Brunei Darussalam | bn | BRN | Bandar Seri Begawan |
| Bulgaria | bg | BGR | Sofia |
| Burkina Faso | bf | BFA | Ouagadougou |
| Burundi | bi | BDI | Bujumbura |
| Cabo Verde | cv | CPV | Praia |
| Cambodia | kh | KHM | Phnom Penh |
| Cameroon | cm | CMR | Yaounde |
| Canada | ca | CAN | Ottawa |
| Cayman Islands | ky | CYM | Georgetown |
| Central African Republic | cf | CAF | Bangui |
| Chad | td | TCD | N'Djamena |
| Chile | cl | CHL | Santiago |
| China | cn | CHN | Beijing |
| Christmas Island | cx | CXR | The Settlement |
| Cocos (Keeling) Islands | cc | CCK | West Island |
| Colombia | co | COL | Bogota |
| Comoros | km | COM | Moroni |
| Congo | cg | COG | Brazzaville |
| Congo, Dem. Republic | cd | COD | Kinshasa |
| Cook Islands | ck | COK | Avarua |
| Costa Rica | cr | CRI | San Jose |
| Croatia | hr | HRV | Zagreb |
| Cuba | cu | CUB | Havana |
| Curaçao | cw | CUW | Willemstad |
| Cyprus | cy | CYP | Nicosia |
| Czechia | cz | CZE | Prague |
| Côte d'Ivoire | ci | CIV | Abidjan |
| Denmark | dk | DNK | Copenhagen |
| Djibouti | dj | DJI | Djibouti |
| Dominica | dm | DMA | Roseau |
| Dominican Republic | do | DOM | Santo Domingo |
| Ecuador | ec | ECU | Quito |
| Egypt | eg | EGY | Cairo |
| El Salvador | sv | SLV | San Salvador |
| Equatorial Guinea | gq | GNQ | Malabo |
| Eritrea | er | ERI | Asmara |
| Estonia | ee | EST | Tallinn |
| Eswatini | sz | SWZ | Mbabane |
| Ethiopia | et | ETH | Addis Ababa |
| European Union | eu | INT | Brussels |
| Falkland Islands (Malvinas) | fk | FLK | Stanley |
| Faroe Islands | fo | FRO | Torshavn |
| Fiji | fj | FJI | Suva |
| Finland | fi | FIN | Helsinki |
| France | fr | FRA | Paris |
| French Guiana | gf | GUF | Cayenne |
| French Polynesia | pf | PYF | Papeete |
| French Southern Territories | tf | ATF | None |
| Gabon | ga | GAB | Libreville |
| Gambia | gm | GMB | Banjul |
| Georgia | ge | GEO | Tbilisi |
| Germany | de | DEU | Berlin |
| Ghana | gh | GHA | Accra |
| Gibraltar | gi | GIB | Gibraltar |
| Greece | gr | GRC | Athens |
| Greenland | gl | GRL | Godthab |
| Grenada | gd | GRD | St. George's |
| Guadeloupe (French) | gp | GLP | Basse-Terre |
| Guam (USA) | gu | GUM | Agana |
| Guatemala | gt | GTM | Guatemala City |
| Guernsey | gg | GGY | St. Peter Port |
| Guinea | gn | GIN | Conakry |
| Guinea Bissau | gw | GNB | Bissau |
| Guyana | gy | GUY | Georgetown |
| Haiti | ht | HTI | Port-au-Prince |
| Heard Island and McDonald Islands | hm | HMD | None |
| Holy See | va | VAT | Vatican City |
| Honduras | hn | HND | Tegucigalpa |
| Hong Kong | hk | HKG | Victoria |
| Hungary | hu | HUN | Budapest |
| Iceland | is | ISL | Reykjavik |
| India | in | IND | New Delhi |
| Indonesia | id | IDN | Jakarta |
| Iran | ir | IRN | Tehran |
| Iraq | iq | IRQ | Baghdad |
| Ireland | ie | IRL | Dublin |
| Isle of Man | im | IMN | Douglas |
| Israel | il | ISR | Jerusalem |
| Italy | it | ITA | Rome |
| Jamaica | jm | JAM | Kingston |
| Japan | jp | JPN | Tokyo |
| Jersey | je | JEY | Saint Helier |
| Jordan | jo | JOR | Amman |
| Kazakhstan | kz | KAZ | Astana |
| Kenya | ke | KEN | Nairobi |
| Kiribati | ki | KIR | Tarawa |
| Korea-North | kp | PRK | Pyongyang |
| Korea-South | kr | KOR | Seoul |
| Kuwait | kw | KWT | Kuwait City |
| Kyrgyzstan | kg | KGZ | Bishkek |
| Laos | la | LAO | Vientiane |
| Latvia | lv | LVA | Riga |
| Lebanon | lb | LBN | Beirut |
| Lesotho | ls | LSO | Maseru |
| Liberia | lr | LBR | Monrovia |
| Libya | ly | LBY | Tripoli |
| Liechtenstein | li | LIE | Vaduz |
| Lithuania | lt | LTU | Vilnius |
| Luxembourg | lu | LUX | Luxembourg |
| Macao | mo | MAC | Macau |
| Madagascar | mg | MDG | Antananarivo |
| Malawi | mw | MWI | Lilongwe |
| Malaysia | my | MYS | Kuala Lumpur |
| Maldives | mv | MDV | Male |
| Mali | ml | MLI | Bamako |
| Malta | mt | MLT | Valletta |
| Marshall Islands | mh | MHL | Majuro |
| Martinique (French) | mq | MTQ | Fort-de-France |
| Mauritania | mr | MRT | Nouakchott |
| Mauritius | mu | MUS | Port Louis |
| Mayotte | yt | MYT | Dzaoudzi |
| Mexico | mx | MEX | Mexico City |
| Micronesia | fm | FSM | Palikir |
| Moldova | md | MDA | Kishinev |
| Monaco | mc | MCO | Monaco |
| Mongolia | mn | MNG | Ulan Bator |
| Montenegro | me | MNE | Podgorica |
| Montserrat | ms | MSR | Plymouth |
| Morocco | ma | MAR | Rabat |
| Mozambique | mz | MOZ | Maputo |
| Myanmar | mm | MMR | Naypyidaw |
| Namibia | na | NAM | Windhoek |
| Nauru | nr | NRU | Yaren |
| Nepal | np | NPL | Kathmandu |
| Netherlands | nl | NLD | Amsterdam |
| New Caledonia (French) | nc | NCL | Noumea |
| New Zealand | nz | NZL | Wellington |
| Nicaragua | ni | NIC | Managua |
| Niger | ne | NER | Niamey |
| Nigeria | ng | NGA | Lagos |
| Niue | nu | NIU | Alofi |
| Norfolk Island | nf | NFK | Kingston |
| North Macedonia | mk | MKD | Skopje |
| Northern Mariana Islands | mp | MNP | Saipan |
| Norway | no | NOR | Oslo |
| Oman | om | OMN | Muscat |
| Pakistan | pk | PAK | Islamabad |
| Palau | pw | PLW | Koror |
| Panama | pa | PAN | Panama City |
| Papua New Guinea | pg | PNG | Port Moresby |
| Paraguay | py | PRY | Asuncion |
| Peru | pe | PER | Lima |
| Philippines | ph | PHL | Manila |
| Pitcairn Island | pn | PCN | Adamstown |
| Poland | pl | POL | Warsaw |
| Portugal | pt | PRT | Lisbon |
| Puerto Rico | pr | PRI | San Juan |
| Qatar | qa | QAT | Doha |
| Reunion (French) | re | REU | Saint-Denis |
| Romania | ro | ROU | Bucharest |
| Russia | ru | RUS | Moscow |
| Rwanda | rw | RWA | Kigali |
| Saint Barthélemy | bl | BLM | Gustavia |
| Saint Helena | sh | SHN | Jamestown |
| Saint Kitts & Nevis Anguilla | kn | KNA | Basseterre |
| Saint Lucia | lc | LCA | Castries |
| Saint Martin (French part) | mf | MAF | Marigot |
| Saint Pierre and Miquelon | pm | SPM | St. Pierre |
| Saint Vincent & Grenadines | vc | VCT | Kingstown |
| Samoa | ws | WSM | Apia |
| San Marino | sm | SMR | San Marino |
| Sao Tome and Principe | st | STP | Sao Tome |
| Saudi Arabia | sa | SAU | Riyadh |
| Senegal | sn | SEN | Dakar |
| Serbia | rs | SRB | Belgrade |
| Seychelles | sc | SYC | Victoria |
| Sierra Leone | sl | SLE | Freetown |
| Singapore | sg | SGP | Singapore |
| Sint Maarten (Dutch part) | sx | SXM | Philipsburg |
| Slovakia | sk | SVK | Bratislava |
| Slovenia | si | SVN | Ljubljana |
| Solomon Islands | sb | SLB | Honiara |
| Somalia | so | SOM | Mogadishu |
| South Africa | za | ZAF | Pretoria |
| South Georgia & South Sandwich Islands | gs | SGS | None |
| South Sudan | ss | SSD | Ramciel |
| Spain | es | ESP | Madrid |
| Sri Lanka | lk | LKA | Colombo |
| Sudan | sd | SDN | Khartoum |
| Suriname | sr | SUR | Paramaribo |
| Svalbard and Jan Mayen Islands | sj | SJM | Longyearbyen |
| Sweden | se | SWE | Stockholm |
| Switzerland | ch | CHE | Bern |
| Syria | sy | SYR | Damascus |
| Taiwan | tw | TWN | Taipei |
| Tajikistan | tj | TJK | Dushanbe |
| Tanzania | tz | TZA | Dodoma |
| Thailand | th | THA | Bangkok |
| Timor-Leste | tl | TLS | Dili |
| Togo | tg | TGO | Lome |
| Tokelau | tk | TKL | None |
| Tonga | to | TON | Nuku'alofa |
| Trinidad and Tobago | tt | TTO | Port of Spain |
| Tunisia | tn | TUN | Tunis |
| Turkey | tr | TUR | Ankara |
| Turkmenistan | tm | TKM | Ashgabat |
| Turks and Caicos Islands | tc | TCA | Grand Turk |
| Tuvalu | tv | TUV | Funafuti |
| USA | us | USA | Washington |
| USA Minor Outlying Islands | um | UMI | None |
| Uganda | ug | UGA | Kampala |
| Ukraine | ua | UKR | Kiev |
| United Arab Emirates | ae | ARE | Abu Dhabi |
| United Kingdom (Great Britain and N. Ireland) | gb | GBR | London |
| Uruguay | uy | URY | Montevideo |
| Uzbekistan | uz | UZB | Tashkent |
| Vanuatu | vu | VUT | Port Vila |
| Venezuela | ve | VEN | Caracas |
| Vietnam | vn | VNM | Hanoi |
| Virgin Islands (British) | vg | VGB | Road Town |
| Virgin Islands (USA) | vi | VIR | Charlotte Amalie |
| Wallis and Futuna Islands | wf | WLF | Mata-Utu |
| Western Sahara | eh | ESH | El Aaiun |
| Yemen | ye | YEM | San'a |
| Zambia | zm | ZMB | Lusaka |
| Zimbabwe | zw | ZWE | Harare |
The country codes are specified by ISO 3166-1.
The following codes were deleted from ISO 3166-1: TP (East Timor), SU (Former USSR), YU (Yugoslavia).