# Codici ISO 639-3 (A-B)

Di seguito la lista completa dei Codici ISO 639-3 (lettere A e B)

## A

| Cod. | 639-2 | 639-1 | Dom | Tip | Nome |
| aaa | | | I | L | Ghotuo |
| aab | | | I | L | Alumu-Tesu |
| aac | | | I | L | Ari |
| aad | | | I | L | Amal |
| aae | | | I | L | Arbëreshë Albanian |
| aaf | | | I | L | Aranadan |
| aag | | | I | L | Ambrak |
| aai | | | I | L | Arifama-Miniafia |
| aak | | | I | L | Ankave |
| aal | | | I | L | Afade |
| aam | | | I | L | Aramanik |
| aan | | | I | L | Anambé |
| aao | | | I | L | Algerian Saharan Arabic |
| aap | | | I | L | Pará Arára |
| aaq | | | I | E | Eastern Abnaki |
| aar | aar | aa | I | L | Afar |
| aas | | | I | L | Aasáx |
| aat | | | I | L | Arvanitika Albanian |
| aau | | | I | L | Abau |
| aaw | | | I | L | Solong |
| aax | | | I | L | Mandobo Atas |
| aaz | | | I | L | Amarasi |
| aba | | | I | L | Abé |
| abb | | | I | L | Bankon |
| abc | | | I | L | Ambala Ayta |
| abd | | | I | L | Manide |
| abe | | | I | L | Western Abnaki |
| abf | | | I | L | Abai Sungai |
| abg | | | I | L | Abaga |
| abh | | | I | L | Tajiki Arabic |
| abi | | | I | L | Abidji |
| abj | | | I | E | Aka-Bea |
| abk | abk | ab | I | L | Abkhazian |
| abl | | | I | L | Abung |
| abm | | | I | L | Abanyom |
| abn | | | I | L | Abua |
| abo | | | I | L | Abon |
| abp | | | I | L | Abenlen Ayta |
| abq | | | I | L | Abaza |
| abr | | | I | L | Abron |
| abs | | | I | L | Ambonese Malay |
| abt | | | I | L | Ambulas |
| abu | | | I | L | Abure |
| abv | | | I | L | Baharna Arabic |
| abw | | | I | L | Pal |
| abx | | | I | L | Inabaknon |
| aby | | | I | L | Aneme Wake |
| abz | | | I | L | Abui |
| aca | | | I | L | Achagua |
| acb | | | I | L | Áncá |
| acd | | | I | L | Gikyode |
| ace | ace | | I | L | Achinese |
| acf | | | I | L | Saint Lucian Creole French |
| ach | ach | | I | L | Acoli |
| aci | | | I | E | Aka-Cari |
| ack | | | I | E | Aka-Kora |
| acl | | | I | E | Akar-Bale |
| acm | | | I | L | Mesopotamian Arabic |
| acn | | | I | L | Achang |
| acp | | | I | L | Eastern Acipa |
| acq | | | I | L | Ta'izzi-Adeni Arabic |
| acr | | | I | L | Achí |
| acs | | | I | E | Acroá |
| act | | | I | L | Achterhoeks |
| acu | | | I | L | Achuar-Shiwiar |
| acv | | | I | L | Achumawi |
| acw | | | I | L | Hijazi Arabic |
| acx | | | I | L | Omani Arabic |
| acy | | | I | L | Cypriot Arabic |
| acz | | | I | L | Acheron |
| ada | ada | | I | L | Adangme |
| adb | | | I | L | Adabe |
| add | | | I | L | Dzodinka |
| ade | | | I | L | Adele |
| adf | | | I | L | Dhofari Arabic |
| adg | | | I | L | Andegerebinha |
| adh | | | I | L | Adhola |
| adi | | | I | L | Adi |
| adj | | | I | L | Adioukrou |
| adl | | | I | L | Galo |
| adn | | | I | L | Adang |
| ado | | | I | L | Abu |
| adp | | | I | L | Adap |
| adq | | | I | L | Adangbe |
| adr | | | I | L | Adonara |
| ads | | | I | L | Adamorobe Sign Language |
| adt | | | I | L | Adnyamathanha |
| adu | | | I | L | Aduge |
| adw | | | I | L | Amundava |
| adx | | | I | L | Amdo Tibetan |
| ady | ady | | I | L | Adyghe |
| aea | | | I | E | Areba |
| aeb | | | I | L | Tunisian Arabic |
| aec | | | I | L | Saidi Arabic |
| aed | | | I | L | Argentine Sign Language |
| aee | | | I | L | Northeast Pashayi |
| aek | | | I | L | Haeke |
| ael | | | I | L | Ambele |
| aem | | | I | L | Arem |
| aen | | | I | L | Armenian Sign Language |
| aeq | | | I | L | Aer |
| aer | | | I | L | Eastern Arrernte |
| aes | | | I | E | Alsea |
| aew | | | I | L | Ambakich |
| aey | | | I | L | Amele |
| aez | | | I | L | Aeka |
| afb | | | I | L | Gulf Arabic |
| afd | | | I | L | Andai |
| afe | | | I | L | Putukwam |
| afh | afh | | I | C | Afrihili |
| afi | | | I | L | Akrukay |
| afk | | | I | L | Nanubae |
| afn | | | I | L | Defaka |
| afo | | | I | L | Eloyi |
| afp | | | I | L | Tapei |
| afr | afr | af | I | L | Afrikaans |
| afs | | | I | L | Afro-Seminole Creole |
| aft | | | I | L | Afitti |
| afu | | | I | L | Awutu |
| afz | | | I | L | Obokuitai |
| aga | | | I | E | Aguano |
| agb | | | I | L | Legbo |
| agc | | | I | L | Agatu |
| agd | | | I | L | Agarabi |
| age | | | I | L | Angal |
| agf | | | I | L | Arguni |
| agg | | | I | L | Angor |
| agh | | | I | L | Ngelima |
| agi | | | I | L | Agariya |
| agj | | | I | L | Argobba |
| agk | | | I | L | Isarog Agta |
| agl | | | I | L | Fembe |
| agm | | | I | L | Angaatiha |
| agn | | | I | L | Agutaynen |
| ago | | | I | L | Tainae |
| agq | | | I | L | Aghem |
| agr | | | I | L | Aguaruna |
| ags | | | I | L | Esimbi |
| agt | | | I | L | Central Cagayan Agta |
| agu | | | I | L | Aguacateco |
| agv | | | I | L | Remontado Agta |
| agw | | | I | L | Kahua |
| agx | | | I | L | Aghul |
| agy | | | I | L | Southern Alta |
| agz | | | I | L | Mt. Iriga Agta |
| aha | | | I | L | Ahanta |
| ahb | | | I | L | Axamb |
| ahg | | | I | L | Qimant |
| ahh | | | I | L | Aghu |
| ahi | | | I | L | Tiagbamrin Aizi |
| ahk | | | I | L | Akha |
| ahl | | | I | L | Igo |
| ahm | | | I | L | Mobumrin Aizi |
| ahn | | | I | L | Àhàn |
| aho | | | I | E | Ahom |
| ahp | | | I | L | Aproumu Aizi |
| ahr | | | I | L | Ahirani |
| ahs | | | I | L | Ashe |
| aht | | | I | L | Ahtena |
| aia | | | I | L | Arosi |
| aib | | | I | L | Ainu (China) |
| aic | | | I | L | Ainbai |
| aid | | | I | L | Alngith |
| aie | | | I | L | Amara |
| aif | | | I | L | Agi |
| aig | | | I | L | Antigua and Barbuda Creole English |
| aih | | | I | L | Ai-Cham |
| aii | | | I | L | Assyrian Neo-Aramaic |
| aij | | | I | L | Lishanid Noshan |
| aik | | | I | L | Ake |
| ail | | | I | L | Aimele |
| aim | | | I | L | Aimol |
| ain | ain | | I | L | Ainu (Japan) |
| aio | | | I | L | Aiton |
| aip | | | I | L | Burumakok |
| aiq | | | I | L | Aimaq |
| air | | | I | L | Airoran |
| ais | | | I | L | Nataoran Amis |
| ait | | | I | E | Arikem |
| aiw | | | I | L | Aari |
| aix | | | I | L | Aigon |
| aiy | | | I | L | Ali |
| aja | | | I | L | Aja (Sudan) |
| ajg | | | I | L | Aja (Benin) |
| aji | | | I | L | Ajië |
| ajp | | | I | L | South Levantine Arabic |
| ajt | | | I | L | Judeo-Tunisian Arabic |
| aju | | | I | L | Judeo-Moroccan Arabic |
| ajw | | | I | E | Ajawa |
| ajz | | | I | L | Amri |
| aka | aka | ak | M | L | Akan |
| akb | | | I | L | Batak Angkola |
| akc | | | I | L | Mpur |
| akd | | | I | L | Ukpet-Ehom |
| ake | | | I | L | Akawaio |
| akf | | | I | L | Akpa |
| akg | | | I | L | Anakalangu |
| akh | | | I | L | Angal Heneng |
| aki | | | I | L | Aiome |
| akj | | | I | E | Aka-Jeru |
| akk | akk | | I | A | Akkadian |
| akl | | | I | L | Aklanon |
| akm | | | I | E | Aka-Bo |
| ako | | | I | L | Akurio |
| akp | | | I | L | Siwu |
| akq | | | I | L | Ak |
| akr | | | I | L | Araki |
| aks | | | I | L | Akaselem |
| akt | | | I | L | Akolet |
| aku | | | I | L | Akum |
| akv | | | I | L | Akhvakh |
| akw | | | I | L | Akwa |
| akx | | | I | E | Aka-Kede |
| aky | | | I | E | Aka-Kol |
| akz | | | I | L | Alabama |
| ala | | | I | L | Alago |
| alc | | | I | L | Qawasqar |
| ald | | | I | L | Alladian |
| ale | ale | | I | L | Aleut |
| alf | | | I | L | Alege |
| alh | | | I | L | Alawa |
| ali | | | I | L | Amaimon |
| alj | | | I | L | Alangan |
| alk | | | I | L | Alak |
| all | | | I | L | Allar |
| alm | | | I | L | Amblong |
| aln | | | I | L | Gheg Albanian |
| alo | | | I | L | Larike-Wakasihu |
| alp | | | I | L | Alune |
| alq | | | I | L | Algonquin |
| alr | | | I | L | Alutor |
| als | | | I | L | Tosk Albanian |
| alt | alt | | I | L | Southern Altai |
| alu | | | I | L | 'Are'are |
| alw | | | I | L | Alaba |
| alx | | | I | L | Amol |
| aly | | | I | L | Alyawarr |
| alz | | | I | L | Alur |
| ama | | | I | E | Amanayé |
| amb | | | I | L | Ambo |
| amc | | | I | L | Amahuaca |
| ame | | | I | L | Yanesha' |
| amf | | | I | L | Hamer-Banna |
| amg | | | I | L | Amurdak |
| amh | amh | am | I | L | Amharic |
| ami | | | I | L | Amis |
| amj | | | I | L | Amdang |
| amk | | | I | L | Ambai |
| aml | | | I | L | War |
| amm | | | I | L | Ama (Papua New Guinea) |
| amn | | | I | L | Amanab |
| amo | | | I | L | Amo |
| amp | | | I | L | Alamblak |
| amq | | | I | L | Amahai |
| amr | | | I | L | Amarakaeri |
| ams | | | I | L | Southern Amami-Oshima |
| amt | | | I | L | Amto |
| amu | | | I | L | Guerrero Amuzgo |
| amv | | | I | L | Ambelau |
| amw | | | I | L | Western Neo-Aramaic |
| amx | | | I | L | Anmatyerre |
| amy | | | I | L | Ami |
| amz | | | I | L | Atampaya |
| ana | | | I | E | Andaqui |
| anb | | | I | E | Andoa |
| anc | | | I | L | Ngas |
| and | | | I | L | Ansus |
| ane | | | I | L | Xârâcùù |
| anf | | | I | L | Animere |
| ang | ang | | I | H | Old English (ca. 450-1100) |
| anh | | | I | L | Nend |
| ani | | | I | L | Andi |
| anj | | | I | L | Anor |
| ank | | | I | L | Goemai |
| anl | | | I | L | Anu |
| anm | | | I | L | Anal |
| ann | | | I | L | Obolo |
| ano | | | I | L | Andoque |
| anp | anp | | I | L | Angika |
| anq | | | I | L | Jarawa (India) |
| anr | | | I | L | Andh |
| ans | | | I | E | Anserma |
| ant | | | I | L | Antakarinya |
| anu | | | I | L | Anuak |
| anv | | | I | L | Denya |
| anw | | | I | L | Anaang |
| anx | | | I | L | Andra-Hus |
| any | | | I | L | Anyin |
| anz | | | I | L | Anem |
| aoa | | | I | L | Angolar |
| aob | | | I | L | Abom |
| aoc | | | I | L | Pemon |
| aod | | | I | L | Andarum |
| aoe | | | I | L | Angal Enen |
| aof | | | I | L | Bragat |
| aog | | | I | L | Angoram |
| aoh | | | I | E | Arma |
| aoi | | | I | L | Anindilyakwa |
| aoj | | | I | L | Mufian |
| aok | | | I | L | Arhö |
| aol | | | I | L | Alor |
| aom | | | I | L | Ömie |
| aon | | | I | L | Bumbita Arapesh |
| aor | | | I | L | Aore |
| aos | | | I | L | Taikat |
| aot | | | I | L | A'tong |
| aou | | | I | L | A'ou |
| aox | | | I | L | Atorada |
| aoz | | | I | L | Uab Meto |
| apb | | | I | L | Sa'a |
| apc | | | I | L | North Levantine Arabic |
| apd | | | I | L | Sudanese Arabic |
| ape | | | I | L | Bukiyip |
| apf | | | I | L | Pahanan Agta |
| apg | | | I | L | Ampanang |
| aph | | | I | L | Athpariya |
| api | | | I | L | Apiaká |
| apj | | | I | L | Jicarilla Apache |
| apk | | | I | L | Kiowa Apache |
| apl | | | I | L | Lipan Apache |
| apm | | | I | L | Mescalero-Chiricahua Apache |
| apn | | | I | L | Apinayé |
| apo | | | I | L | Apalik |
| app | | | I | L | Apma |
| apq | | | I | L | A-Pucikwar |
| apr | | | I | L | Arop-Lukep |
| aps | | | I | L | Arop-Sissano |
| apt | | | I | L | Apatani |
| apu | | | I | L | Apurinã |
| apv | | | I | L | Alapmunte |
| apw | | | I | L | Western Apache |
| | | I | L | Aputai |
| apy | | | I | L | Apalaí |
| apz | | | I | L | Safeyoka |
| aqc | | | I | L | Archi |
| aqg | | | I | L | Arigidi |
| aqm | | | I | L | Atohwaim |
| aqn | | | I | L | Northern Alta |
| aqp | | | I | E | Atakapa |
| aqr | | | I | L | Arhâ |
| ara | ara | ar | M | L | Arabic |
| arb | | | I | L | Standard Arabic |
| arc | arc | | I | A | Aramaic |
| ard | | | I | E | Arabana |
| are | | | I | L | Western Arrarnta |
| arg | arg | an | I | L | Aragonese |
| arh | | | I | L | Arhuaco |
| ari | | | I | L | Arikara |
| arj | | | I | E | Arapaso |
| ark | | | I | L | Arikapú |
| arl | | | I | L | Arabela |
| arn | arn | | I | L | Mapudungun |
| aro | | | I | L | Araona |
| arp | arp | | I | L | Arapaho |
| arq | | | I | L | Algerian Arabic |
| arr | | | I | L | Karo (Brazil) |
| ars | | | I | L | Najdi Arabic |
| aru | | | I | E | Arua |
| arv | | | I | L | Arbore |
| arw | arw | | I | L | Arawak |
| arx | | | I | L | Aruá |
| ary | | | I | L | Moroccan Arabic |
| arz | | | I | L | Egyptian Arabic |
| asa | | | I | L | Asu (Tanzania) |
| asb | | | I | L | Assiniboine |
| asc | | | I | L | Casuarina Coast Asmat |
| asd | | | I | L | Asas |
| ase | | | I | L | American Sign Language |
| asf | | | I | L | Australian Sign Language |
| asg | | | I | L | Cishingini |
| ash | | | I | E | Abishira |
| asi | | | I | L | Buruwai |
| asj | | | I | L | Nsari |
| ask | | | I | L | Ashkun |
| asl | | | I | L | Asilulu |
| asm | asm | as | I | L | Assamese |
| asn | | | I | L | Xingú Asuriní |
| aso | | | I | L | Dano |
| asp | | | I | L | Algerian Sign Language |
| asq | | | I | L | Austrian Sign Language |
| asr | | | I | L | Asuri |
| ass | | | I | L | Ipulo |
| ast | ast | | I | L | Asturian |
| asu | | | I | L | Tocantins Asurini |
| asv | | | I | L | Asoa |
| asw | | | I | L | Australian Aborigines Sign Language |
| asx | | | I | L | Muratayak |
| asy | | | I | L | Yaosakor Asmat |
| asz | | | I | L | As |
| ata | | | I | L | Pele-Ata |
| atb | | | I | L | Zaiwa |
| atc | | | I | E | Atsahuaca |
| atd | | | I | L | Ata Manobo |
| ate | | | I | L | Atemble |
| atg | | | I | L | Ivbie North-Okpela-Arhe |
| ati | | | I | L | Attié |
| atj | | | I | L | Atikamekw |
| atk | | | I | L | Ati |
| atl | | | I | L | Mt. Iraya Agta |
| atm | | | I | L | Ata |
| atn | | | I | L | Ashtiani |
| ato | | | I | L | Atong |
| atp | | | I | L | Pudtol Atta |
| atq | | | I | L | Aralle-Tabulahan |
| atr | | | I | L | Atruahí |
| ats | | | I | L | Gros Ventre |
| att | | | I | L | Pamplona Atta |
| atu | | | I | L | Reel |
| atv | | | I | L | Northern Altai |
| atw | | | I | L | Atsugewi |
| atx | | | I | L | Arutani |
| aty | | | I | L | Aneityum |
| atz | | | I | L | Arta |
| aua | | | I | L | Asumboa |
| auc | | | I | L | Waorani |
| aud | | | I | L | Anuta |
| aue | | | I | L | =/Kx'au//'ein |
| aug | | | I | L | Aguna |
| auh | | | I | L | Aushi |
| aui | | | I | L | Anuki |
| auj | | | I | L | Awjilah |
| auk | | | I | L | Heyo |
| aul | | | I | L | Aulua |
| aum | | | I | L | Asu (Nigeria) |
| aun | | | I | L | Molmo One |
| auo | | | I | E | Auyokawa |
| aup | | | I | L | Makayam |
| auq | | | I | L | Anus |
| aur | | | I | L | Aruek |
| aut | | | I | L | Austral |
| auu | | | I | L | Auye |
| auw | | | I | L | Awyi |
| aux | | | I | E | Aurá |
| auy | | | I | L | Awiyaana |
| auz | | | I | L | Uzbeki Arabic |
| ava | ava | av | I | L | Avaric |
| avb | | | I | L | Avau |
| avd | | | I | L | Alviri-Vidari |
| ave | ave | ae | I | A | Avestan |
| avi | | | I | L | Avikam |
| avk | | | I | C | Kotava |
| avl | | | I | L | Eastern Egyptian Bedawi Arabic |
| avn | | | I | L | Avatime |
| avo | | | I | E | Agavotaguerra |
| avs | | | I | E | Aushiri |
| avt | | | I | L | Au |
| avu | | | I | L | Avokaya |
| avv | | | I | L | Avá-Canoeiro |
| awa | awa | | I | L | Awadhi |
| awb | | | I | L | Awa |
| awc | | | I | L | Western Acipa |
| awe | | | I | L | Awetí |
| awh | | | I | L | Awbono |
| awi | | | I | L | Aekyom |
| awk | | | I | E | Awabakal |
| awm | | | I | L | Arawum |
| awn | | | I | L | Awngi |
| awo | | | I | L | Awak |
| awr | | | I | L | Awera |
| aws | | | I | L | South Awyu |
| awt | | | I | L | Araweté |
| awu | | | I | L | Central Awyu |
| awv | | | I | L | Jair Awyu |
| aww | | | I | L | Awun |
| awx | | | I | L | Awara |
| awy | | | I | L | Edera Awyu |
| axb | | | I | E | Abipon |
| axg | | | I | E | Mato Grosso Arára |
| axk | | | I | L | Yaka (Central African Republic) |
| axm | | | I | H | Middle Armenian |
| axx | | | I | L | Xaragure |
| aya | | | I | L | Awar |
| ayb | | | I | L | Ayizo Gbe |
| ayc | | | I | L | Southern Aymara |
| ayd | | | I | L | Ayabadhu |
| aye | | | I | L | Ayere |
| ayg | | | I | L | Ginyanga |
| ayh | | | I | L | Hadrami Arabic |
| ayi | | | I | L | Leyigha |
| ayk | | | I | L | Akuku |
| ayl | | | I | L | Libyan Arabic |
| aym | aym | ay | M | L | Aymara |
| ayn | | | I | L | Sanaani Arabic |
| ayo | | | I | L | Ayoreo |
| ayp | | | I | L | North Mesopotamian Arabic |
| ayq | | | I | L | Ayi (Papua New Guinea) |
| ayr | | | I | L | Central Aymara |
| ays | | | I | L | Sorsogon Ayta |
| ayt | | | I | L | Magbukun Ayta |
| ayu | | | I | L | Ayu |
| ayy | | | I | E | Tayabas Ayta |
| ayz | | | I | L | Mai Brat |
| azb | | | I | L | South Azerbaijani |
| azd | | | I | L | Eastern Durango Nahuatl |
| aze | aze | az | M | L | Azerbaijani |
| azg | | | I | L | San Pedro Amuzgos Amuzgo |
| azj | | | I | L | North Azerbaijani |
| azm | | | I | L | Ipalapa Amuzgo |
| azn | | | I | L | Western Durango Nahuatl |
| azo | | | I | L | Awing |
| azr | | | I | L | Adzera |
| azt | | | I | L | Faire Atta |
| azz | | | I | L | Highland Puebla Nahuatl |
Codici ritirati
| 639-3 | Nome | Motivo del ritiro |
| aay | Aariya | Lingua inesistente |
| acc | Cubulco Achí | Unito ad Achi (acr) |
| aex | Amerax | Unito ad English (eng) |
| agp | Paranan | Suddiviso in Pahanan Agta (apf) e Paranan (prf) |
| ahe | Ahe | Unito a Kendayan/Salako (knx) |
| aiz | Aari | Suddiviso in Aari (aiw) e Gayil (gyl) |
| akn | Amikoana | Lingua inesistente |
| amd | Amapá Creole | Lingua inesistente |
| arf | Arafundi | Suddiviso in Andai (afd), Nanubae (afk), Tapei (afp) |
| atf | Atuence | Lingua inesistente |
| auv | Auvergnat | Unito a Occitan (post 1500) (oci) |
| ayx | Ayi (China) | Unito a Anong (nun) come duplicato |

## B

| Cod. | 639-2 | 639-1 | Dom | Tip | Nome |
| baa | | | I | L | Babatana |
| bab | | | I | L | Bainouk-Gunyuño |
| bac | | | I | L | Badui |
| bae | | | I | E | Baré |
| baf | | | I | L | Nubaca |
| bag | | | I | L | Tuki |
| bah | | | I | L | Bahamas Creole English |
| baj | | | I | L | Barakai |
| bak | bak | ba | I | L | Bashkir |
| bal | bal | | M | L | Baluchi |
| bam | bam | bm | I | L | Bambara |
| ban | ban | | I | L | Balinese |
| bao | | | I | L | Waimaha |
| bap | | | I | L | Bantawa |
| bar | | | I | L | Bavarian |
| bas | bas | | I | L | Basa (Cameroon) |
| bau | | | I | L | Bada (Nigeria) |
| bav | | | I | L | Vengo |
| baw | | | I | L | Bambili-Bambui |
| bax | | | I | L | Bamun |
| bay | | | I | L | Batuley |
| bba | | | I | L | Baatonum |
| bbb | | | I | L | Barai |
| bbc | | | I | L | Batak Toba |
| bbd | | | I | L | Bau |
| bbe | | | I | L | Bangba |
| bbf | | | I | L | Baibai |
| bbg | | | I | L | Barama |
| bbh | | | I | L | Bugan |
| bbi | | | I | L | Barombi |
| bbj | | | I | L | Ghomálá' |
| bbk | | | I | L | Babanki |
| bbl | | | I | L | Bats |
| bbm | | | I | L | Babango |
| bbn | | | I | L | Uneapa |
| bbo | | | I | L | Northern Bobo Madaré |
| bbp | | | I | L | West Central Banda |
| bbq | | | I | L | Bamali |
| bbr | | | I | L | Girawa |
| bbs | | | I | L | Bakpinka |
| bbt | | | I | L | Mburku |
| bbu | | | I | L | Kulung (Nigeria) |
| bbv | | | I | L | Karnai |
| bbw | | | I | L | Baba |
| bbx | | | I | L | Bubia |
| bby | | | I | L | Befang |
| bbz | | | I | L | Babalia Creole Arabic |
| bca | | | I | L | Central Bai |
| bcb | | | I | L | Bainouk-Samik |
| bcc | | | I | L | Southern Balochi |
| bcd | | | I | L | North Babar |
| bce | | | I | L | Bamenyam |
| bcf | | | I | L | Bamu |
| bcg | | | I | L | Baga Binari |
| bch | | | I | L | Bariai |
| bci | | | I | L | Baoulé |
| bcj | | | I | L | Bardi |
| bck | | | I | L | Bunaba |
| bcl | | | I | L | Central Bicolano |
| bcm | | | I | L | Bannoni |
| bcn | | | I | L | Bali (Nigeria) |
| bco | | | I | L | Kaluli |
| bcp | | | I | L | Bali (Democratic Republic of Congo) |
| bcq | | | I | L | Bench |
| bcr | | | I | L | Babine |
| bcs | | | I | L | Kohumono |
| bct | | | I | L | Bendi |
| bcu | | | I | L | Awad Bing |
| bcv | | | I | L | Shoo-Minda-Nye |
| bcw | | | I | L | Bana |
| bcy | | | I | L | Bacama |
| bcz | | | I | L | Bainouk-Gunyaamolo |
| bda | | | I | L | Bayot |
| bdb | | | I | L | Basap |
| bdc | | | I | L | Emberá-Baudó |
| bdd | | | I | L | Bunama |
| bde | | | I | L | Bade |
| bdg | | | I | L | Bonggi |
| bdh | | | I | L | Baka (Sudan) |
| bdi | | | I | L | Burun |
| bdj | | | I | L | Bai |
| bdk | | | I | L | Budukh |
| bdl | | | I | L | Indonesian Bajau |
| bdm | | | I | L | Buduma |
| bdn | | | I | L | Baldemu |
| bdo | | | I | L | Bernde |
| bdp | | | I | L | Bende |
| bdq | | | I | L | Bahnar |
| bdr | | | I | L | West Coast Bajau |
| bds | | | I | L | Burunge |
| bdt | | | I | L | Bokoto |
| bdu | | | I | L | Oroko |
| bdv | | | I | L | Bodo Parja |
| bdw | | | I | L | Baham |
| bdx | | | I | L | Budong-Budong |
| bdy | | | I | L | Bandjalang |
| bdz | | | I | L | Badeshi |
| bea | | | I | L | Beaver |
| beb | | | I | L | Bebele |
| bec | | | I | L | Iceve-Maci |
| bed | | | I | L | Bedoanas |
| bee | | | I | L | Byangsi |
| bef | | | I | L | Benabena |
| beg | | | I | L | Belait |
| beh | | | I | L | Biali |
| bei | | | I | L | Bekati' |
| bej | bej | | I | L | Beja |
| bek | | | I | L | Bebeli |
| bel | bel | be | I | L | Belarusian |
| bem | bem | | I | L | Bemba (Zambia) |
| ben | ben | bn | I | L | Bengali |
| beo | | | I | L | Beami |
| bep | | | I | L | Besoa |
| beq | | | I | L | Beembe |
| bes | | | I | L | Besme |
| bet | | | I | L | Guiberoua Béte |
| beu | | | I | L | Blagar |
| bev | | | I | L | Daloa Bété |
| bew | | | I | L | Betawi |
| bex | | | I | L | Jur Modo |
| bey | | | I | L | Beli (Papua New Guinea) |
| bez | | | I | L | Bena (Tanzania) |
| bfa | | | I | L | Bari |
| bfb | | | I | L | Pauri Bareli |
| bfc | | | I | L | Northern Bai |
| bfd | | | I | L | Bafut |
| bfe | | | I | L | Betaf |
| bff | | | I | L | Bofi |
| bfg | | | I | L | Busang Kayan |
| bfh | | | I | L | Blafe |
| bfi | | | I | L | British Sign Language |
| bfj | | | I | L | Bafanji |
| bfk | | | I | L | Ban Khor Sign Language |
| bfl | | | I | L | Banda-Ndélé |
| bfm | | | I | L | Mmen |
| bfn | | | I | L | Bunak |
| bfo | | | I | L | Malba Birifor |
| bfp | | | I | L | Beba |
| bfq | | | I | L | Badaga |
| bfr | | | I | L | Bazigar |
| bfs | | | I | L | Southern Bai |
| bft | | | I | L | Balti |
| bfu | | | I | L | Gahri |
| bfw | | | I | L | Bondo |
| bfy | | | I | L | Bagheli |
| bfz | | | I | L | Mahasu Pahari |
| bga | | | I | L | Gwamhi-Wuri |
| bgb | | | I | L | Bobongko |
| bgc | | | I | L | Haryanvi |
| bgd | | | I | L | Rathwi Bareli |
| bge | | | I | L | Bauria |
| bgf | | | I | L | Bangandu |
| bgg | | | I | L | Bugun |
| bgi | | | I | L | Giangan |
| bgj | | | I | L | Bangolan |
| bgk | | | I | L | Bit |
| bgl | | | I | L | Bo (Laos) |
| bgm | | | I | L | Baga Mboteni |
| bgn | | | I | L | Western Balochi |
| bgo | | | I | L | Baga Koga |
| bgp | | | I | L | Eastern Balochi |
| bgq | | | I | L | Bagri |
| bgr | | | I | L | Bawm Chin |
| bgs | | | I | L | Tagabawa |
| bgt | | | I | L | Bughotu |
| bgu | | | I | L | Mbongno |
| bgv | | | I | L | Warkay-Bipim |
| bgw | | | I | L | Bhatri |
| bgx | | | I | L | Balkan Gagauz Turkish |
| bgy | | | I | L | Benggoi |
| bgz | | | I | L | Banggai |
| bha | | | I | L | Bharia |
| bhb | | | I | L | Bhili |
| bhc | | | I | L | Biga |
| bhd | | | I | L | Bhadrawahi |
| bhe | | | I | L | Bhaya |
| bhf | | | I | L | Odiai |
| bhg | | | I | L | Binandere |
| bhh | | | I | L | Bukharic |
| bhi | | | I | L | Bhilali |
| bhj | | | I | L | Bahing |
| bhl | | | I | L | Bimin |
| bhm | | | I | L | Bathari |
| bhn | | | I | L | Bohtan Neo-Aramaic |
| bho | bho | | I | L | Bhojpuri |
| bhp | | | I | L | Bima |
| bhq | | | I | L | Tukang Besi South |
| bhr | | | I | L | Bara Malagasy |
| bhs | | | I | L | Buwal |
| bht | | | I | L | Bhattiyali |
| bhu | | | I | L | Bhunjia |
| bhv | | | I | L | Bahau |
| bhw | | | I | L | Biak |
| bhx | | | I | L | Bhalay |
| bhy | | | I | L | Bhele |
| bhz | | | I | L | Bada (Indonesia) |
| bia | | | I | L | Badimaya |
| bib | | | I | L | Bissa |
| bic | | | I | L | Bikaru |
| bid | | | I | L | Bidiyo |
| bie | | | I | L | Bepour |
| bif | | | I | L | Biafada |
| big | | | I | L | Biangai |
| bij | | | I | L | Vaghat-Ya-Bijim-Legeri |
| bik | bik | | M | L | Bikol |
| bil | | | I | L | Bile |
| bim | | | I | L | Bimoba |
| bin | bin | | I | L | Bini |
| bio | | | I | L | Nai |
| bip | | | I | L | Bila |
| biq | | | I | L | Bipi |
| bir | | | I | L | Bisorio |
| bis | bis | bi | I | L | Bislama |
| bit | | | I | L | Berinomo |
| biu | | | I | L | Biete |
| biv | | | I | L | Southern Birifor |
| biw | | | I | L | Kol (Cameroon) |
| bix | | | I | L | Bijori |
| biy | | | I | L | Birhor |
| biz | | | I | L | Baloi |
| bja | | | I | L | Budza |
| bjb | | | I | E | Banggarla |
| bjc | | | I | L | Bariji |
| bje | | | I | L | Biao-Jiao Mien |
| bjf | | | I | L | Barzani Jewish Neo-Aramaic |
| bjg | | | I | L | Bidyogo |
| bjh | | | I | L | Bahinemo |
| bji | | | I | L | Burji |
| bjj | | | I | L | Kanauji |
| bjk | | | I | L | Barok |
| bjl | | | I | L | Bulu (Papua New Guinea) |
| bjm | | | I | L | Bajelani |
| bjn | | | I | L | Banjar |
| bjo | | | I | L | Mid-Southern Banda |
| bjr | | | I | L | Binumarien |
| bjs | | | I | L | Bajan |
| bjt | | | I | L | Balanta-Ganja |
| bju | | | I | L | Busuu |
| bjv | | | I | L | Bedjond |
| bjw | | | I | L | Bakwé |
| bjx | | | I | L | Banao Itneg |
| bjy | | | I | E | Bayali |
| bjz | | | I | L | Baruga |
| bka | | | I | L | Kyak |
| bkc | | | I | L | Baka (Cameroon) |
| bkd | | | I | L | Binukid |
| bkf | | | I | L | Beeke |
| bkg | | | I | L | Buraka |
| bkh | | | I | L | Bakoko |
| bki | | | I | L | Baki |
| bkj | | | I | L | Pande |
| bkk | | | I | L | Brokskat |
| bkl | | | I | L | Berik |
| bkm | | | I | L | Kom (Cameroon) |
| bkn | | | I | L | Bukitan |
| bko | | | I | L | Kwa' |
| bkp | | | I | L | Boko (Democratic Republic of Congo) |
| bkq | | | I | L | Bakairí |
| bkr | | | I | L | Bakumpai |
| bks | | | I | L | Masbate Sorsogon |
| bkt | | | I | L | Boloki |
| bku | | | I | L | Buhid |
| bkv | | | I | L | Bekwarra |
| bkw | | | I | L | Bekwil |
| bkx | | | I | L | Baikeno |
| bky | | | I | L | Bokyi |
| bkz | | | I | L | Bungku |
| bla | bla | | I | L | Siksika |
| blb | | | I | L | Bilua |
| blc | | | I | L | Bella Coola |
| bld | | | I | L | Bolango |
| ble | | | I | L | Balanta-Kentohe |
| blf | | | I | L | Buol |
| blg | | | I | L | Balau |
| blh | | | I | L | Kuwaa |
| bli | | | I | L | Bolia |
| blj | | | I | L | Bolongan |
| blk | | | I | L | Pa'o Karen |
| bll | | | I | E | Biloxi |
| blm | | | I | L | Beli (Sudan) |
| bln | | | I | L | Southern Catanduanes Bicolano |
| blo | | | I | L | Anii |
| blp | | | I | L | Blablanga |
| blq | | | I | L | Baluan-Pam |
| blr | | | I | L | Blang |
| bls | | | I | L | Balaesang |
| blt | | | I | L | Tai Dam |
| blv | | | I | L | Bolo |
| blw | | | I | L | Balangao |
| blx | | | I | L | Mag-Indi Ayta |
| bly | | | I | L | Notre |
| blz | | | I | L | Balantak |
| bma | | | I | L | Lame |
| bmb | | | I | L | Bembe |
| bmc | | | I | L | Biem |
| bmd | | | I | L | Baga Manduri |
| bme | | | I | L | Limassa |
| bmf | | | I | L | Bom |
| bmg | | | I | L | Bamwe |
| bmh | | | I | L | Kein |
| bmi | | | I | L | Bagirmi |
| bmj | | | I | L | Bote-Majhi |
| bmk | | | I | L | Ghayavi |
| bml | | | I | L | Bomboli |
| bmm | | | I | L | Northern Betsimisaraka Malagasy |
| bmn | | | I | E | Bina (Papua New Guinea) |
| bmo | | | I | L | Bambalang |
| bmp | | | I | L | Bulgebi |
| bmq | | | I | L | Bomu |
| bmr | | | I | L | Muinane |
| bms | | | I | L | Bilma Kanuri |
| bmt | | | I | L | Biao Mon |
| bmu | | | I | L | Burum-Mindik |
| bmv | | | I | L | Bum |
| bmw | | | I | L | Bomwali |
| bmx | | | I | L | Baimak |
| bmy | | | I | L | Bemba (Democratic Republic of Congo) |
| bmz | | | I | L | Baramu |
| bna | | | I | L | Bonerate |
| bnb | | | I | L | Bookan |
| bnc | | | I | L | Central Bontoc |
| bnd | | | I | L | Banda (Indonesia) |
| bne | | | I | L | Bintauna |
| bnf | | | I | L | Masiwang |
| bng | | | I | L | Benga |
| bni | | | I | L | Bangi |
| bnj | | | I | L | Eastern Tawbuid |
| bnk | | | I | L | Bierebo |
| bnl | | | I | L | Boon |
| bnm | | | I | L | Batanga |
| bnn | | | I | L | Bunun |
| bno | | | I | L | Bantoanon |
| bnp | | | I | L | Bola |
| bnq | | | I | L | Bantik |
| bnr | | | I | L | Butmas-Tur |
| bns | | | I | L | Bundeli |
| bnu | | | I | L | Bentong |
| bnv | | | I | L | Bonerif |
| bnw | | | I | L | Bisis |
| bnx | | | I | L | Bangubangu |
| bny | | | I | L | Bintulu |
| bnz | | | I | L | Beezen |
| boa | | | I | L | Bora |
| bob | | | I | L | Aweer |
| bod | bod/tib | bo | I | L | Tibetan |
| boe | | | I | L | Mundabli |
| bof | | | I | L | Bolon |
| bog | | | I | L | Bamako Sign Language |
| boh | | | I | L | Boma |
| boi | | | I | E | Barbareño |
| boj | | | I | L | Anjam |
| bok | | | I | L | Bonjo |
| bol | | | I | L | Bole |
| bom | | | I | L | Berom |
| bon | | | I | L | Bine |
| boo | | | I | L | Tiemacèwè Bozo |
| bop | | | I | L | Bonkiman |
| boq | | | I | L | Bogaya |
| bor | | | I | L | Borôro |
| bos | bos | bs | I | L | Bosnian |
| bot | | | I | L | Bongo |
| bou | | | I | L | Bondei |
| bov | | | I | L | Tuwuli |
| bow | | | I | E | Rema |
| box | | | I | L | Buamu |
| boy | | | I | L | Bodo (Central African Republic) |
| boz | | | I | L | Tiéyaxo Bozo |
| bpa | | | I | L | Dakaka |
| bpb | | | I | E | Barbacoas |
| bpd | | | I | L | Banda-Banda |
| bpg | | | I | L | Bonggo |
| bph | | | I | L | Botlikh |
| bpi | | | I | L | Bagupi |
| bpj | | | I | L | Binji |
| bpk | | | I | L | Orowe |
| bpl | | | I | L | Broome Pearling Lugger Pidgin |
| bpm | | | I | L | Biyom |
| bpn | | | I | L | Dzao Min |
| bpo | | | I | L | Anasi |
| bpp | | | I | L | Kaure |
| bpq | | | I | L | Banda Malay |
| bpr | | | I | L | Koronadal Blaan |
| bps | | | I | L | Sarangani Blaan |
| bpt | | | I | E | Barrow Point |
| bpu | | | I | L | Bongu |
| bpv | | | I | L | Bian Marind |
| bpw | | | I | L | Bo (Papua New Guinea) |
| | | I | L | Palya Bareli |
| bpy | | | I | L | Bishnupriya |
| bpz | | | I | L | Bilba |
| bqa | | | I | L | Tchumbuli |
| bqb | | | I | L | Bagusa |
| bqc | | | I | L | Boko (Benin) |
| bqd | | | I | L | Bung |
| bqf | | | I | E | Baga Kaloum |
| bqg | | | I | L | Bago-Kusuntu |
| bqh | | | I | L | Baima |
| bqi | | | I | L | Bakhtiari |
| bqj | | | I | L | Bandial |
| bqk | | | I | L | Banda-Mbrès |
| bql | | | I | L | Bilakura |
| bqm | | | I | L | Wumboko |
| bqn | | | I | L | Bulgarian Sign Language |
| bqo | | | I | L | Balo |
| bqp | | | I | L | Busa |
| bqq | | | I | L | Biritai |
| bqr | | | I | L | Burusu |
| bqs | | | I | L | Bosngun |
| bqt | | | I | L | Bamukumbit |
| bqu | | | I | L | Boguru |
| bqv | | | I | L | Begbere-Ejar |
| bqw | | | I | L | Buru (Nigeria) |
| bqx | | | I | L | Baangi |
| bqy | | | I | L | Bali Sign Language |
| bqz | | | I | L | Bakaka |
| bra | bra | | I | L | Braj |
| brb | | | I | L | Lave |
| brc | | | I | L | Berbice Creole Dutch |
| brd | | | I | L | Baraamu |
| bre | bre | br | I | L | Breton |
| brf | | | I | L | Bera |
| brg | | | I | L | Baure |
| brh | | | I | L | Brahui |
| bri | | | I | L | Mokpwe |
| brj | | | I | L | Bieria |
| brk | | | I | E | Birked |
| brl | | | I | L | Birwa |
| brm | | | I | L | Barambu |
| brn | | | I | L | Boruca |
| bro | | | I | L | Brokkat |
| brp | | | I | L | Barapasi |
| brq | | | I | L | Breri |
| brr | | | I | L | Birao |
| brs | | | I | L | Baras |
| brt | | | I | L | Bitare |
| bru | | | I | L | Eastern Bru |
| brv | | | I | L | Western Bru |
| brw | | | I | L | Bellari |
| brx | | | I | L | Bodo (India) |
| bry | | | I | L | Burui |
| brz | | | I | L | Bilbil |
| bsa | | | I | L | Abinomn |
| bsb | | | I | L | Brunei Bisaya |
| bsc | | | I | L | Bassari |
| bse | | | I | L | Wushi |
| bsf | | | I | L | Bauchi |
| bsg | | | I | L | Bashkardi |
| bsh | | | I | L | Kati |
| bsi | | | I | L | Bassossi |
| bsj | | | I | L | Bangwinji |
| bsk | | | I | L | Burushaski |
| bsl | | | I | E | Basa-Gumna |
| bsm | | | I | L | Busami |
| bsn | | | I | L | Barasana-Eduria |
| bso | | | I | L | Buso |
| bsp | | | I | L | Baga Sitemu |
| bsq | | | I | L | Bassa |
| bsr | | | I | L | Bassa-Kontagora |
| bss | | | I | L | Akoose |
| bst | | | I | L | Basketo |
| bsu | | | I | L | Bahonsuai |
| bsv | | | I | E | Baga Sobané |
| bsw | | | I | L | Baiso |
| bsx | | | I | L | Yangkam |
| bsy | | | I | L | Sabah Bisaya |
| bta | | | I | L | Bata |
| btc | | | I | L | Bati (Cameroon) |
| btd | | | I | L | Batak Dairi |
| bte | | | I | E | Gamo-Ningi |
| btf | | | I | L | Birgit |
| btg | | | I | L | Gagnoa Bété |
| bth | | | I | L | Biatah Bidayuh |
| bti | | | I | L | Burate |
| btj | | | I | L | Bacanese Malay |
| btl | | | I | L | Bhatola |
| btm | | | I | L | Batak Mandailing |
| btn | | | I | L | Ratagnon |
| bto | | | I | L | Iriga Bicolano |
| btp | | | I | L | Budibud |
| btq | | | I | L | Batek |
| btr | | | I | L | Baetora |
| bts | | | I | L | Batak Simalungun |
| btt | | | I | L | Bete-Bendi |
| btu | | | I | L | Batu |
| btv | | | I | L | Bateri |
| btw | | | I | L | Butuanon |
| btx | | | I | L | Batak Karo |
| bty | | | I | L | Bobot |
| btz | | | I | L | Batak Alas-Kluet |
| bua | bua | | M | L | Buriat |
| bub | | | I | L | Bua |
| buc | | | I | L | Bushi |
| bud | | | I | L | Ntcham |
| bue | | | I | E | Beothuk |
| buf | | | I | L | Bushoong |
| bug | bug | | I | L | Buginese |
| buh | | | I | L | Younuo Bunu |
| bui | | | I | L | Bongili |
| buj | | | I | L | Basa-Gurmana |
| buk | | | I | L | Bugawac |
| bul | bul | bg | I | L | Bulgarian |
| bum | | | I | L | Bulu (Cameroon) |
| bun | | | I | L | Sherbro |
| buo | | | I | L | Terei |
| bup | | | I | L | Busoa |
| buq | | | I | L | Brem |
| bus | | | I | L | Bokobaru |
| but | | | I | L | Bungain |
| buu | | | I | L | Budu |
| buv | | | I | L | Bun |
| buw | | | I | L | Bubi |
| bux | | | I | L | Boghom |
| buy | | | I | L | Bullom So |
| buz | | | I | L | Bukwen |
| bva | | | I | L | Barein |
| bvb | | | I | L | Bube |
| bvc | | | I | L | Baelelea |
| bvd | | | I | L | Baeggu |
| bve | | | I | L | Berau Malay |
| bvf | | | I | L | Boor |
| bvg | | | I | L | Bonkeng |
| bvh | | | I | L | Bure |
| bvi | | | I | L | Belanda Viri |
| bvj | | | I | L | Baan |
| bvk | | | I | L | Bukat |
| bvl | | | I | L | Bolivian Sign Language |
| bvm | | | I | L | Bamunka |
| bvn | | | I | L | Buna |
| bvo | | | I | L | Bolgo |
| bvq | | | I | L | Birri |
| bvr | | | I | L | Burarra |
| bvt | | | I | L | Bati (Indonesia) |
| bvu | | | I | L | Bukit Malay |
| bvv | | | I | E | Baniva |
| bvw | | | I | L | Boga |
| bvx | | | I | L | Dibole |
| bvz | | | I | L | Bauzi |
| bwa | | | I | L | Bwatoo |
| bwb | | | I | L | Namosi-Naitasiri-Serua |
| bwc | | | I | L | Bwile |
| bwd | | | I | L | Bwaidoka |
| bwe | | | I | L | Bwe Karen |
| bwf | | | I | L | Boselewa |
| bwg | | | I | L | Barwe |
| bwh | | | I | L | Bishuo |
| bwi | | | I | L | Baniwa |
| bwj | | | I | L | Láá Láá Bwamu |
| bwk | | | I | L | Bauwaki |
| bwl | | | I | L | Bwela |
| bwm | | | I | L | Biwat |
| bwn | | | I | L | Wunai Bunu |
| bwo | | | I | L | Boro |
| bwp | | | I | L | Mandobo Bawah |
| bwq | | | I | L | Southern Bobo Madaré |
| bwr | | | I | L | Bura-Pabir |
| bws | | | I | L | Bomboma |
| bwt | | | I | L | Bafaw-Balong |
| bwu | | | I | L | Buli (Ghana) |
| bwv | | | I | L | Bahau River Kenyah |
| bww | | | I | L | Bwa |
| bwx | | | I | L | Bu-Nao Bunu |
| bwy | | | I | L | Cwi Bwamu |
| bwz | | | I | L | Bwisi |
| bxa | | | I | L | Bauro |
| bxb | | | I | L | Belanda Bor |
| bxc | | | I | L | Molengue |
| bxd | | | I | L | Pela |
| bxe | | | I | L | Birale |
| bxf | | | I | L | Bilur |
| bxg | | | I | L | Bangala |
| bxh | | | I | L | Buhutu |
| bxi | | | I | E | Pirlatapa |
| bxj | | | I | L | Bayungu |
| bxk | | | I | L | Bukusu |
| bxl | | | I | L | Jalkunan |
| bxm | | | I | L | Mongolia Buriat |
| bxn | | | I | L | Burduna |
| bxo | | | I | L | Barikanchi |
| bxp | | | I | L | Bebil |
| bxq | | | I | L | Beele |
| bxr | | | I | L | Russia Buriat |
| bxs | | | I | L | Busam |
| bxu | | | I | L | China Buriat |
| bxv | | | I | L | Berakou |
| bxw | | | I | L | Bankagooma |
| bxx | | | I | L | Borna |
| bxz | | | I | L | Binahari |
| bya | | | I | L | Batak |
| byb | | | I | L | Bikya |
| byc | | | I | L | Ubaghara |
| byd | | | I | L | Benyadu' |
| bye | | | I | L | Pouye |
| byf | | | I | L | Bete |
| byg | | | I | E | Baygo |
| byh | | | I | L | Bujhyal |
| byi | | | I | L | Buyu |
| byj | | | I | L | Bina (Nigeria) |
| byk | | | I | L | Biao |
| byl | | | I | L | Bayono |
| bym | | | I | L | Bidyara |
| byn | byn | | I | L | Bilin |
| byo | | | I | L | Biyo |
| byp | | | I | L | Bumaji |
| byq | | | I | E | Basay |
| byr | | | I | L | Baruya |
| bys | | | I | L | Burak |
| byt | | | I | E | Berti |
| byv | | | I | L | Medumba |
| byw | | | I | L | Belhariya |
| byx | | | I | L | Qaqet |
| byy | | | I | L | Buya |
| byz | | | I | L | Banaro |
| bza | | | I | L | Bandi |
| bzb | | | I | L | Andio |
| bzc | | | I | L | Southern Betsimisaraka Malagasy |
| bzd | | | I | L | Bribri |
| bze | | | I | L | Jenaama Bozo |
| bzf | | | I | L | Boikin |
| bzg | | | I | L | Babuza |
| bzh | | | I | L | Mapos Buang |
| bzi | | | I | L | Bisu |
| bzj | | | I | L | Belize Kriol English |
| bzk | | | I | L | Nicaragua Creole English |
| bzl | | | I | L | Boano (Sulawesi) |
| bzm | | | I | L | Bolondo |
| bzn | | | I | L | Boano (Maluku) |
| bzo | | | I | L | Bozaba |
| bzp | | | I | L | Kemberano |
| bzq | | | I | L | Buli (Indonesia) |
| bzr | | | I | E | Biri |
| bzs | | | I | L | Brazilian Sign Language |
| bzt | | | I | C | Brithenig |
| bzu | | | I | L | Burmeso |
| bzv | | | I | L | Bebe |
| bzw | | | I | L | Basa (Nigeria) |
| bzx | | | I | L | Kɛlɛngaxo Bozo |
| bzy | | | I | L | Obanliku |
| bzz | | | I | L | Evant |
Codici ritirati
| 639-3 | Nome | Motivo del ritiro |
| baz | Tunen | Suddiviso in Nyokon (nvo) e Tunen (tvu) |
| bcx | Pamona | Suddiviso in Batui (zbt) e Pamona (pmf) |
| bgh | Bogan | Unito a Bugan (bbh) come duplicato |
| bhk | Albay Bicolano | Suddiviso inBuhi'non Bikol (ubl), Libon Bikol (lbl), Miraya Bikol (rbl), West Albay Bikol (fbl) |
| bii | Bisu | Suddiviso in Bisu (bzi) e Laomian (lwm) |
| bjd | Bandjigali | Unito a Paakantyi (drl) |
| bjq | Southern Betsimisaraka Malagasy | Suddiviso in Southern Betsimisaraka Malagasy (bzc) e Tesaka Malagasy (tkg) |
| bkb | Finallig | Suddiviso in Eastern Bontok (ebk) e Southern Bontok (obk) |
| bke | Bengkulu | Unito a Central Malay (pse) |
| blu | Hmong Njua | Suddiviso in Chuanqiandian Cluster Miao (cqd), Hmong Njua (hnj), Horned Miao (hrm), Small Flowery Miao (sfm) |
| bnh | Banawá | Unito a Jamamadí (jaa) |
| boc | Bakung Kenyah | Unito a Mainstream Kenyah (xkl) |
| bqe | Navarro-Labourdin Basque | Unito a Basque (eus) |
| bsd | Sarawak Bisaya | Unito a Brunei Bisaya (bsb) |
| bsz | Souletin Basque | Unito a Basque (eus) |
| btb | Beti (Cameroon) | Beti è un gruppo linguistico, non una singola lingua, che comprende Bebele (beb), Bebil (bxp), Bulu (bum), Eton (eto), Ewondo (ewo), Fang (fan) e Mengisa (mct) |
| bvs | Belgian Sign Language | Suddiviso in Langue des signes de Belgique Francophone (sfb) e Vlaamse Gebarentaal (vgt) |
| bwv | Bahau River Kenyah | Lingua inesistente |
| bxt | Buxinhua | Unito a Bit (bgk) come duplicato |
| byu | Buyang | Suddiviso in Baha Buyang (yha), E'ma Buyang (yzg) e Langnian Buyang (yln) |