Language Identifier Reference list as per RFC 3066.
| Region Code | Region Name | Languages |
| (none) | No region assigned | eo (Esperanto) ia (Interlingua) ie (Interlingue) io (Ido) vo (Volapük) |
| AD | Andorra | ca (Catalan) fr-AD (French) |
| AE | United Arab Emirates | ar-AE (Arabic) |
| AF | Afghanistan | fa-AF (Persian) ps (Pushto) ug (Uighur) uz-AF (Uzbek) |
| AG | Antigua And Barbuda | en-AG (English) |
| AI | Anguilla | en-AI (English) |
| AL | Albania | sq (Albanian) |
| AM | Armenia | hy (Armenian) |
| AN | Netherlands Antilles | nl-AN (Dutch) |
| AO | Angola | kg (Kongo) kj (Kuanyama) pt-AO (Portuguese) |
| AR | Argentina | cy-AR (Welsh) es-AR (Spanish) gn (Guarani) |
| AS | American Samoa | en-AS (English) sm (Samoan) |
| AT | Austria | de-AT (German) hu (Hungarian) |
| AU | Australia | en-AU (English) YI (Yiddish) |
| AW | Aruba | nl-AW (Dutch) |
| AX | Ã…land Islands | sv-AX (Swedish) |
| AZ | Azerbaijan | av (Avaric) az (Azerbaijani) az-Arab (Azerbaijani) az-Cyrl (Azerbaijani) az-Latn (Azerbaijani) os (Ossetian) |
| BA | Bosnia And Herzegovina | bs (Bosnian) hr-BA (Croatian) sr-BA (Serbian) |
| BB | Barbados | en-BB (English) |
| BD | Bangladesh | bn-BD (Bengali) |
| BE | Belgium | de-BE (German) en-BE (English) fr-BE (French) nl-BE (Dutch) wa (Walloon) yi (Yiddish) |
| BF | Burkina Faso | bm (Bambara) fr-BF (French) ha (Hausa) |
| BG | Bulgaria | bg (Bulgarian) cu (Church Slavic) tr-BG (Turkish) |
| BH | Bahrain | ar-BH (Arabic) |
| BI | Burundi | fr-BI (French) rn (Rundi) |
| BJ | Benin | fr-BJ (French) |
| BM | Bermuda | en-BM (English) |
| BN | Brunei Darussalam | en-BN (English) ms-BN (Malay) |
| BO | Bolivia | ay (Aymara) es-BO (Spanish) |
| BR | Brazil | pt-BR (Portuguese) |
| BS | Bahamas | en-BS (English) |
| BT | Bhutan | dz (Dzongkha) ne (Nepali) |
| BW | Botswana | en-BW (English) sn (Shona) tn-BW (Tswana) |
| BY | Belarus | be (Belarusian) cu (Church Slavic) yi (Yiddish) |
| BZ | Belize | en-BZ (English) |
| CA | Canada | cr (Cree) en-CA (English) fr-CA (French) iu (Inuktitut) oj (Ojibwa) yi (Yiddish) |
| CC | Cocos (Keeling) Islands | ms-CC (Malay) |
| CD | Congo, The Democratic Republic Of The | fr-CD (French) kg (Kongo) ln-CD (Lingala) lu (Luba-Katanga) |
| CF | Central African Republic | fr-CF (French) sg (Sango) |
| CG | Congo | fr-CG (French) kg (Kongo) ln-CG (Lingala) |
| CH | Switzerland | de-CH (German) fr-CH (French) it-CH (Italian) rm (Raeto-Romance) |
| CI | Côte D’ivoire | ak (Akan) bm (Bambara) fr-CI (French) |
| CK | Cook Islands | en-CK (English) |
| CL | Chile | ay (Aymara) es-CL (Spanish) |
| CM | Cameroon | en-CM (English) fr-CM (French) |
| CN | China | bo (Tibetan) i-hak (Hakka) ii (Sichuan Yi) za (Zhuang) zh-CN (Chinese) zh-gan (Chinese) zh-guoyu (Chinese) zh-hakka (Chinese) zh-Hans (Chinese) zh-Hans-CN (Chinese) zh-Hant (Chinese) zh-Hant-CN (Chinese) zh-wuu (Chinese) zh-xiang (Chinese) zh-yue (Chinese) |
| CO | Colombia | es-CO (Spanish) |
| CR | Costa Rica | es-CR (Spanish) |
| CS | Serbia And Montenegro | cu (Church Slavic) hu (Hungarian) sq (Albanian) sr (Serbian) sr-Cyrl (Serbian) sr-Latn (Serbian) |
| CU | Cuba | es-CU (Spanish) |
| CV | Cape Verde | pt-CV (Portuguese) |
| CX | Christmas Island | ms-CC (Malay,Cocos (Keeling) Islands) |
| CY | Cyprus | el-CY (Greek) tr-CY (Turkish) |
| CZ | Czech Republic | cs (Czech) |
| DE | Germany | da-DE (Danish) da-DE (Danish) de-1901 (German) de-1996 (German) de-AT-1901 (German) de-AT-1996 (German) de-CH-1901 (German) de-CH-1996 (German) de-DE (German) de-DE-1901 (German) de-DE-1996 (German) dsb (Lower Sorbian) fy-DE (Frisian) hsb (Upper Sorbian) lb (Luxembourgish) nds (Low German) wen (Sorbian) yi (Yiddish) |
| DJ | Djibouti | aa-DJ (Afar) fr-DJ (French) so-DJ (Somali) |
| DK | Denmark | da-DK (Danish) de-DK (German) |
| DM | Dominica | en-DM (English) |
| DO | Dominican Republic | es-DO (Spanish) |
| DZ | Algeria | ar-DZ (Arabic) |
| EC | Ecuador | es-EC (Spanish) |
| EE | Estonia | et (Estonian) yi (Yiddish) |
| EG | Egypt | ar-EG (Arabic) |
| ER | Eritrea | aa-ER (Afar) byn (Blin) en-ER (English) gez-ER (Geez) ti-ER (Tigrinya) tig (Tigre) |
| ES | Spain | an (Aragonese) ca (Catalan) es-ES (Spanish) eu (Basque) gl (Gallegan) |
| ET | Ethiopia | aa-ET (Afar) am (Amharic) en-ET (English) gez-ET (Geez) om-ET (Oromo) sid (Sidamo) so-ET (Somali) ti-ET (Tigrinya) wal (Walamo) |
| FI | Finland | fi-FI (Finnish) smn (Inari Sami) sv-FI (Swedish) |
| FJ | Fiji | en-FJ (English) fj (Fijian) |
| FK | Falkland Islands (Malvinas) | en-FK (English) |
| FM | Micronesia, Federated States Of | en-FM (English) |
| FO | Faroe Islands | da-FO (Danish) fo (Faroese) |
| FR | France | br (Breton) co (Corsican) de-FR (German) fr-FR (French) oc (Occitan) |
| GA | Gabon | fr-GA (French) |
| GB | United Kingdom | cy-GB (Welsh) en-boont (English) en-GB (English) en-GB-oed (English) en-scouse (English) fr-GB (French) ga-GB (Irish) gd (Gaelic) gv (Manx) kw (Cornish) |
| GD | Grenada | en-GD (English) |
| GE | Georgia | ab (Abkhazian) ka (Georgian) os (Ossetian) |
| GF | French Guiana | fr-GF (French) |
| GH | Ghana | ak (Akan) ee (Ewe) en-GH (English) tw (Twi) |
| GI | Gibraltar | en-GI (English) |
| GL | Greenland | da-GL (Danish) kl (Kalaallisut) |
| GM | Gambia | bm (Bambara) en-GM (English) wo (Wolof) |
| GN | Guinea | fr-GN (French) |
| GP | Guadeloupe | fr-GP (French) |
| GQ | Equatorial Guinea | es-GQ (Spanish) |
| GR | Greece | el-GR (Greek) |
| GT | Guatemala | es-GT (Spanish) |
| GU | Guam | ch-GU (Chamorro) en-GU (English) |
| GW | Guinea-Bissau | pt-GW (Portuguese) |
| GY | Guyana | en-GY (English) |
| HK | Hong Kong | en-HK (English) zh-Hant (Chinese) zh-Hant-HK (Chinese) zh-HK (Chinese) |
| HN | Honduras | es-HN (Spanish) |
| HR | Croatia | hr-HR (Croatian) it-HR (Italian) |
| HT | Haiti | fr-HT (French) ht (Haitian) |
| HU | Hungary | de-HU (German) hu-HU (Hungarian) sk-HU (Slovak) sr-HU (Serbian) |
| ID | Indonesia | id (Indonesian) jv (Javanese) su (Sundanese) |
| IE | Ireland | en-IE (English) ga-IE (Irish) |
| IL | Israel | ar-IL (Arabic) en-IL (English) he (Hebrew) yi (Yiddish) |
| IN | India | ar-IN (Arabic) as (Assamese) bh (Bihari) bn-IN (Bengali) en-IN (English) gu (Gujarati) hi (Hindi) kn (Kannada) kok (Konkani) ks (Kashmiri) ml (Malayalam) mr (Marathi) ne (Nepali) or (Oriya) pa (Panjabi) pi (Pali) sa (Sanskrit) sd-IN (Sindhi) ta-IN (Tamil) te (Telugu) ur-IN (Urdu) |
| IO | British Indian Ocean Territory | en-IO (English) |
| IQ | Iraq | ar-IQ (Arabic) ku (Kurdish) |
| IR | Iran, Islamic Republic Of | ae (Avestan) fa-IR (Persian) ku (Kurdish) |
| IS | Iceland | is (Icelandic) |
| IT | Italy | co (Corsican) de-IT (German) fr-IT (French) it-IT (Italian) sc (Sardinian) |
| JM | Jamaica | en-JM (English) |
| JO | Jordan | ar-JO (Arabic) |
| JP | Japan | ja (Japanese) |
| KE | Kenya | en-KE (English) ki (Kikuyu) om-KE (Oromo) so-KE (Somali) sw-KE (Swahili) |
| KG | Kyrgyzstan | ky (Kirghiz) ug (Uighur) |
| KH | Cambodia | km (Khmer) |
| KI | Kiribati | en-KI (English) |
| KM | Comoros | fr-KM (French) |
| KN | Saint Kitts And Nevis | en-KN (English) |
| KP | Korea, Democratic People’s Republic Of | ko-KP (Korean) |
| KR | Korea, Republic Of | ko-KR (Korean) |
| KW | Kuwait | ar-KW (Arabic) |
| KY | Cayman Islands | en-KY (English) |
| KZ | Kazakhstan | av (Avaric) kk (Kazakh) os (Ossetian) ug (Uighur) |
| LA | Lao People’s Democratic Republic | lo (Lao) |
| LB | Lebanon | ar-LB (Arabic) fr-LB (French) |
| LC | Saint Lucia | en-LC (English) |
| LI | Liechtenstein | de-LI (German) |
| LK | Sri Lanka | si (Sinhala) |
| LR | Liberia | en-LR (English) |
| LS | Lesotho | en-LS (English) st (Southern Sotho) xh (Xhosa) |
| LT | Lithuania | lt (Lithuanian) yi (Yiddish) |
| LU | Luxembourg | de-LU (German) fr-LU (French) lb (Luxembourgish) |
| LV | Latvia | lv (Latvian) yi (Yiddish) |
| LY | Libyan Arab Jamahiriya | ar-LY (Arabic) |
| MA | Morocco | ar-MA (Arabic) |
| MC | Monaco | fr-MC (French) |
| MD | Moldova, Republic Of | mo (Moldavian) ro (Romanian) tr (Turkish) uk (Ukrainian) yi (Yiddish) |
| MG | Madagascar | fr-MG (French) mg (Malagasy) |
| MH | Marshall Islands | en-MH (English) mh (Marshallese) |
| MK | Macedonia, The Former Yugoslav Republic Of | cu (Church Slavic) mk (Macedonian) |
| ML | Mali | bm (Bambara) fr-ML (French) |
| MM | Myanmar | my (Burmese) |
| MN | Mongolia | mn (Mongolian) |
| MO | Macao | zh-Hant (Chinese) zh-Hant-MO (Chinese) zh-MO (Chinese) |
| MP | Northern Mariana Islands | ch-MP (Chamorro) en-MP (English) |
| MQ | Martinique | fr-MQ (French) |
| MR | Mauritania | ar-MR (Arabic) wo (Wolof) |
| MS | Montserrat | en-MS (English) |
| MT | Malta | en-MT (English) mt (Maltese) |
| MU | Mauritius | en-MU (English) |
| MV | Maldives | dv (Divehi) |
| MW | Malawi | en-MW (English) ny (Chichewa) |
| MX | Mexico | es-MX (Spanish) |
| MY | Malaysia | jv (Javanese) ms-MY (Malay) |
| MZ | Mozambique | pt-MZ (Portuguese) sn (Shona) |
| NA | Namibia | en-NA (English) hz (Herero) ng (Ndonga) |
| NC | New Caledonia | fr-NC (French) |
| NE | Niger | ff-NE (Fulah) fr-NE (French) ha (Hausa) kr (Kanuri) |
| NF | Norfolk Island | en-NF (English) |
| NG | Nigeria | en-NG (English) ff-NG (Fulah) ha (Hausa) ig (Igbo) kr (Kanuri) yo (Yoruba) |
| NI | Nicaragua | es-NI (Spanish) |
| NL | Netherlands | fy-NL (Frisian) li (Limburgan) nl-NL (Dutch) |
| NO | Norway | nb (Bokmål) nn (Nynorsk) no (Norwegian) no-bok (Norwegian) no-nyn (Norwegian) |
| NP | Nepal | ne (Nepali) |
| NR | Nauru | en-NR (English) na (Nauru) |
| NU | Niue | en-NU (English) |
| NZ | New Zealand | en-NZ (English) mi (Maori) |
| OM | Oman | ar-OM (Arabic) |
| PA | Panama | es-PA (Spanish) |
| PE | Peru | ay (Aymara) es-PE (Spanish) qu (Quechua) |
| PF | French Polynesia | fr-PF (French) ty (Tahitian) |
| PG | Papua New Guinea | en-PG (English) ho (Hiri Motu) |
| PH | Philippines | en-PH (English) tl (Tagalog) |
| PK | Pakistan | en-PK (English) sd-PK (Sindhi) ur-PK (Urdu) |
| PL | Poland | de-PL (German) pl (Polish) yi (Yiddish) |
| PM | Saint Pierre And Miquelon | fr-PM (French) |
| PN | Pitcairn | en-PN (English) |
| PR | Puerto Rico | en-PR (English) es-PR (Spanish) |
| PS | Palestinian Territory, Occupied | ar-PS (Arabic) |
| PT | Portugal | pt-PT (Portuguese) |
| PW | Palau | en-PW (English) |
| PY | Paraguay | es-PY (Spanish) gn (Guarani) |
| QA | Qatar | ar-QA (Arabic) |
| RE | Réunion | fr-RE (French) |
| RO | Romania | cu (Church Slavic) hu (Hungarian) ro (Romanian) YI (Yiddish) |
| RU | Russian Federation | av (Avaric) ba (Bashkir) ce (Chechen) cu (Church Slavic) cv (Chuvash) kv (Komi) os (Ossetian) ru-RU (Russian) tt (Tatar) yi (Yiddish) |
| RW | Rwanda | en-RW (English) fr-RW (French) rw (Kinyarwanda) |
| SA | Saudi Arabia | ar-SA (Arabic) |
| SB | Solomon Islands | en-SB (English) |
| SC | Seychelles | en-SC (English) fr-SC (French) |
| SD | Sudan | ar-SD (Arabic) din (Dinka) ha (Hausa) |
| SE | Sweden | fi-SE (Finnish) se (Northern Sami) sma (S. Sami) sme (N. Sami) sv-SE (Swedish) |
| SG | Singapore | bn-SG (Bengali) en-SG (English) ms-SG (Malay) ta-SG (Tamil) zh-Hans-SG (Chinese) zh-SG (Chinese) |
| SH | Saint Helena | en-SH (English) |
| SI | Slovenia | hu-SI (Hungarian) it-SI (Italian) |
| SK | Slovakia | hu (Hungarian) sk (Slovak) |
| SL | Sierra Leone | en-SL (English) |
| SM | San Marino | it-SM (Italian) |
| SN | Senegal | ff-SN (Fulah) wo (Wolof) |
| SO | Somalia | ar-SO (Arabic) en-SO (English) so-SO (Somali) |
| SR | Suriname | jv (Javanese) nl-SR (Dutch) |
| ST | Sao Tome And Principe | pt-ST (Portuguese) |
| SV | El Salvador | es-SV (Spanish) |
| SY | Syrian Arab Republic | ar-SY (Arabic) syr (Syriac) |
| SZ | Swaziland | en-SZ (English) ss-SZ (Swati) |
| TC | Turks And Caicos Islands | en-TC (English) |
| TD | Chad | ar-TD (Arabic) fr-TD (French) |
| TG | Togo | ee (Ewe) fr-TG (French) ha (Hausa) |
| TH | Thailand | si (Sinhala) th (Thai) |
| TJ | Tajikistan | os (Ossetian) tg (Tajik) ug (Uighur) |
| TK | Tokelau | en-TK (English) |
| TL | Timor-Leste | pt-TL (Portuguese) |
| TM | Turkmenistan | os (Ossetian) tk (Turkmen) |
| TN | Tunisia | ar-TN (Arabic) |
| TO | Tonga | en-TO (English) to (Tongan) |
| TR | Turkey | ab (Abkhazian) av (Avaric) ku (Kurdish) tr-TR (Turkish) ug (Uighur) |
| TT | Trinidad And Tobago | en-TT (English) |
| TV | Tuvalu | gil (Gilbertese) tvl (Tuvalu) |
| TW | Taiwan, Province Of China | zh-Hant (Chinese) zh-Hant-TW (Chinese) zh-min (Chinese) zh-min-nan (Chinese) zh-TW (Chinese) |
| TZ | Tanzania, United Republic Of | sw-TZ (Swahili) |
| UA | Ukraine | ab (Abkhazian) cu (Church Slavic) hu (Hungarian) os (Ossetian) pl (Polish) ro (Romanian) ru-UA (Russian) uk (Ukrainian) yi (Yiddish) |
| UG | Uganda | en-UG (English) lg (Ganda) |
| UM | United States Minor Outlying Islands | en-UM (English) |
| US | United States | en-US (English) es-US (Spanish) haw (Hawaiian) ik (Inupiaq) nv (Navajo) oj (Ojibwa) yi (Yiddish) |
| UY | Uruguay | es-UY (Spanish) |
| UZ | Uzbekistan | os (Ossetian) ug (Uighur) uz-Cyrl (Uzbek) uz-Latn (Uzbek) uz-UZ (Uzbek) |
| VA | Holy See (Vatican City State) | fr (French) it (Italian) la (Latin) |
| VC | Saint Vincent And The Grenadines | en-VC (English) |
| VE | Venezuela | es-VE (Spanish) |
| VG | Virgin Islands, British | en-VG (English) |
| VI | Virgin Islands, U.S. | en-VI (English) |
| VN | Viet Nam | vi (Vietnamese) |
| VU | Vanuatu | bi (Bislama) en-VU (English) fr-VU (French) |
| WF | Wallis And Futuna | fr-WF (French) |
| WS | Samoa | en-WS (English) sm (Samoan) |
| YE | Yemen | ar-YE (Arabic) |
| YT | Mayotte | fr-YT (French) |
| YU | Yugoslavia | sr-Cyrl-YU (Serbian) sr-Latn-YU (Serbian) sr-YU (Serbian) |
| ZA | South Africa | af (Afrikaans) en-ZA (English) nr (S. Ndebele) ss-ZA (Swati) tn-ZA (Tswana) ts (Tsonga) ve (Venda) xh (Xhosa) yi (Yiddish) zu (Zulu) |
| ZM | Zambia | en-ZM (English) |
| ZW | Zimbabwe | en-ZW (English) nd (N. Ndebele) sn (Shona) ve (Venda) zu (Zulu) |