ConLang Code Registry

The ConLang Code Registry (CLCR) is a project led by Rebecca Bettencourt to assign ISO-639-3 codes out of the "reserved for local use" area (qaa-qtz) to constructed languages.

Constructed Languages with ISO-639-3 Codes

The following constructed languages already have official ISO-639-3 codes and will therefore not be included in the CLCR.

CodeLanguageCodeLanguageCodeLanguage
afhAfrihiliileInterlingue (Occidental)qyaQuenya
avkKotavainaInterlinguarmvRomanova
bztBrithenigjboLojbansjnSindarin
dwsDutton World SpeedwordsldnLáadantlhKlingon
epoEsperantolfnLingua Franca NovatzlTalossan
idoIdoneuNeovolVolapük
igsInterglossanovNovialzblBlissymbols

CLCR Assignments

Most notable conlangs already have codes assigned. If you know of a notable conlang without a code, you can register for a code here.

CodeLong CodeLanguageDate AddedAuthor
qaaart-x-aaenʾÅa̩en2013-10-27B. Gian James
qacart-x-achiyitqAchiyitqan2015-03-06Sev Halverson
qadart-x-ardlangArdlang2014-09-16Elia Ansaloni
qaeart-x-aelisÆlis2015-01-06Frederic Gesell
qagart-x-atlanteaAtlantean2015-03-15Marc Okrand
qaiart-x-auiiaUI2015-03-15W. John Weilgart
qalart-x-alfinuAlfinu2014-02-10Andrej Schütz
qamart-x-amarieAmarie2014-11-07Even Dybevik
qanart-x-atlaansAtlaans2015-01-09Rolf Weimar
qaoart-x-angosAngos2014-02-10Ben Wood
qarart-x-ammaniarámman îar2015-03-16David Bell
qasart-x-ashailleAsha'ille2010-01-21Arthaey Angosii
qatart-x-attianAttian2013-05-16Waahlis
qauart-x-alurhsaAlurhsa2014-11-03Tony Harris
qavart-x-valianValian2013-08-30Billy J.B.
qaxart-x-xazikXažik2013-10-27B. Gian James
qayart-x-ayeriAyeri2011-09-21Carsten Becker
qazart-x-adunaicAdûnaic2015-05-25J.R.R. Tolkien
qbaart-x-balaibalBalaibalan2015-03-15Fazlallah Astarabadi or Muhyî-i Gülşenî
qbbart-x-babmBabm2016-01-23Rikichi (Fuishiki) Okamoto
qbeart-x-bearlandBearlandic2014-11-08Dē Graut Bʉr
qboart-x-bolakBolak2015-03-15Léon Bollack
qcaart-x-cannicCannic2012-12-07Nikhil Sinha
qceart-x-celineseCelinese2013-11-23A. Ayres
qcgart-x-cacciggaCaccigga2011-09-21Sam Stutter
qcjart-x-carrajinCarrajina2011-09-21Adam Walker
qckart-x-cumbraekCumbraek2015-01-10Neil Whalley
qcqart-x-ceqliTceqli2015-03-15Rex F. May
qcrart-x-caryasCaryas2013-05-15Billy J.B.
qcyart-x-cylenianÐeprot Kyleðr Nenanðir2014-11-13Dengs Krysei
qdaart-x-daminDamin2015-03-15the Lardil tribe
qdhart-x-dhannuaDhannuá2013-05-15Billy J.B.
qdiart-x-dniiD'ni2015-03-06Richard Watson
qdjart-x-duojjinDuojjin2014-11-07Clayton-Dean Lafontaine
qdlart-x-delangDelang2011-09-21Koppa Dasao
qdmart-x-damiyaaDamiyaa2014-11-03Aslan Richard
qdnart-x-deiniDeini2010-01-23Dana Nutter
qdoart-x-dothrakiDothraki2011-09-21David Peterson
qdrart-x-dritokDritok2015-03-16Donald Boozer
qdyart-x-wenedykWenedyk2015-03-15Jan van Steenbergen
qdzart-x-damishenDamishen2016-07-28Axel Krustofski
qeaart-x-takeΤο Ἄνευ Κλίσι Ἑλληνική2015-03-16Ray Brown
qecart-x-enchantaEnchanta2017-01-05Suzette Doctolero
qehart-x-elasianÉlászyato meret2013-05-15Billy J.B.
qekart-x-eskayanEskayan2015-03-15Pinay
qenart-x-enochianEnochian2015-03-15John Dee & Edward Kelley
qevart-x-edievianEdievian2015-03-05B. Ennis
qfeart-x-feorranFeorran2015-03-16Brad Coon
qfiart-x-finianFinian2013-05-15Billy J.B.
qfkart-x-folkspraFolksprak2016-01-23the Folkspraak community
qflart-x-faulianFaulian2014-11-10Thomas R.C. de Roo
qfnart-x-fenghirFén Ghír2013-05-15Tadhg N. Sráide
qfoart-x-formosanFormosan2017-01-25George Psalmanazar
qfrart-x-florenzeFlorenze2016-10-18Andrew Pereira Justiniano
qfsart-x-fritheyFriðejaskir / Frithey2015-03-05Jökull
qfyart-x-feayranFeayran2011-09-22David Edwards
qfzart-x-fazulFazul2017-01-06Ava Kendall
qgdart-x-godelicGodelician2015-02-08Frederic Bayer
qglart-x-glosaGlosa2015-03-15Ron Clark & Wendy Ashby
qgmart-x-gomainGomain2015-01-08Zachary Hart
qgrart-x-grippingGripping Language2015-03-16Alex Fink & Sai
qgvart-x-gravgalnGraavgaaln2011-09-21Adam Walker
qgzart-x-gzbbGjâ-Zym-Byn2015-03-15Jim Henry
qhkart-x-haraktiHarākti2013-09-12Andrej Schütz
qhlart-x-helsenHelsen2015-05-25Harry Hult
qhnart-x-haniHani2014-11-03Spence Hill
qhrart-x-hrasicHrasic2013-05-16Waahlis
qhvart-x-valyrianHigh Valyrian2015-03-15David J. Peterson
qiaart-x-iazychieIazychie2017-01-05Ukrainian Russophiles
qikart-x-iaskyonIaskyon2014-03-02Kenneth Ngan
qilart-x-ilainiIlaini2017-01-05Irina Rempt
qinart-x-idiomneuIdiom Neutral2015-03-15Waldemar Rosenberger
qioart-x-iovebIoVeb2016-06-03Cassondra Foesch
qisart-x-interslvInterslavic2015-03-15Juraj Križanić
qitart-x-ithkuilIthkuil2013-05-15John Quijada
qivart-x-isadduʾIšaddu Yat-Vṛḵaẕikam2014-12-06Malcolm Holborne
qjeart-x-jeiiosJeïos2015-06-21Marvin Johanning
qjgart-x-jolgolegJølgoleg2015-08-12Oliver Williams
qjrart-x-jardaJarda2015-12-06Herman Miller
qjuart-x-juhashJuhash2017-01-06Evan May
qkaart-x-kalusaKalusa2015-03-16Gary Shannon
qkbart-x-kobaianKobaïan2015-10-13Christian Vander
qkdart-x-kardakKardak2013-11-29Mike Bacon
qkeart-x-kelenKēlen2015-03-15Sylvia Sotomayor
qkhart-x-khisadamKhīsadamiurī2014-11-03Cedric J.N. Ludlow
qkiart-x-kiwiKiwi2013-09-04Waahlis
qklart-x-kielKiel2014-11-03Daniel Adler
qkmart-x-kronurumI Kronurum2015-12-06Nicolas Straccia
qkoart-x-koraakiiKõraakii2015-06-23Marvin Johanning
qkrart-x-krigKrig2010-01-21Jeff Sheets
qksart-x-kashKash2015-12-31Roger Mills
qktart-x-ktiiKti2014-07-29J. Drucker
qkwart-x-kamakawiKamakawi2011-09-21David Peterson
qkxart-x-kalabaxKalaba-X2015-03-15Kenneth L. Pike
qkzart-x-kauzasiaKauzasian2015-05-27D. Alfaro
qlcart-x-lincosLincos2017-01-05Hans Freudenthal
qlfart-x-laefevesLaefêvëši2013-08-24Andrej Schütz
qlhart-x-lhenaziLhenazi2010-01-21Arthaey Angosii
qliart-x-ignotaLingua Ignota2015-03-15Hildegard of Bingen
qljart-x-khlijhaKhlìjha2014-11-03James William McCleary
qlnart-x-nouvelleLangue Nouvelle2015-03-15Joachim Faiguet de Villeneuve
qloart-x-loglanLoglan2015-03-15James Cooke Brown
qlpart-x-planetaLingwa de Planeta2015-03-15Dmitri Ivanov
qlrart-x-lrahranLrahran2011-09-22Adam Walker
qlsart-x-lsffLatino sine Flexione2015-03-15Giuseppe Peano
qlvart-x-lonishLonish2015-10-28Pim Boonen
qmdart-x-mondialMondial2017-06-25Dr. Helge Heimer
qmeart-x-medefaidMedefaidrin2017-01-05Michael Ukpong & Akpan Akpan Udofia
qmiart-x-isyanIsyan2014-09-15Jonathan Stockman
qmkart-x-mikianaMikiana2010-01-21Rebecca Bettencourt
qmlart-x-mundolinMundolinco2015-03-15J. Braakman
qmnart-x-umbreanUmbrean2013-10-03Zelos Malum
qmoart-x-motenMoten2015-01-08Christophe Grandsire-Koevoets
qmuart-x-munaMuna2015-03-13Miguel Bartelsman
qmvart-x-mahavicOld Mahavic2017-01-06Ava Kendall
qnaart-x-nadsatNadsat2015-03-15Anthony Burgess
qnbart-x-nalbinoNal Bino2015-03-15Sébastian Verheggen
qndart-x-xynderXynder2015-03-15Dean Fernandez
qngart-x-cwengarCwengâr2013-05-15Tadhg N. Sráide
qniart-x-unishUnish2017-06-25Sejong University, Korea
qnkart-x-nyspekeNỳspèke2011-09-21Sam Stutter
qnlart-x-novoslovNovoslovnica2015-07-29Jegor Karpov
qnoart-x-norsianNorsian2014-11-10Thomas R.C. de Roo
qnpart-x-nepokiNēpoki2014-11-07Wilhelm Stetter
qnrart-x-novegradNovegradian2015-03-16Martin Posthumus
qnsart-x-neoslavNeoslavonic2011-09-24Vojtech Merunka
qntart-x-netaginNetagin2014-01-04Ílchőfti Lēmáthīd
qnvart-x-naviNa'vi2013-05-15Paul Frommer
qnxart-x-nithalosNithalosian2014-02-10Jayden Carr
qnyart-x-nimyadNimyad2010-01-21Thomas Thurman
qnzart-x-nzaysaBuruya Nzaysa2011-09-22Jan Strasser
qocart-x-ochrienOchrien2015-01-06A. Ayres
qokart-x-okunaOkuna2015-03-16Matt Pearson
qpkart-x-pakuniPakuni2015-10-28Victoria Fromkin
qreart-x-ureduREd2014-05-11Serena Innocenti
qrgart-x-ragiRagi2014-11-03Spence Hill
qriart-x-rissRis2013-06-18Waahlis
qrjart-x-rejistanRejistanian2011-09-22Mechthild Czapp
qrkart-x-rikchikRikchik2015-03-16Denis Moskowitz
qrnart-x-karnisnaKarnišna2014-02-10Andrej Schütz
qroart-x-roooRo2015-03-15Rev. Edward Powell Foster
qrpart-x-uropiUropi2015-03-15Joël Landais
qrrart-x-rjargiRjargi2014-05-01Miguel Bartelsman
qrsart-x-resosResos Sus-Sana2015-10-13David Malmström
qryart-x-yerkishYerkish2017-01-05Ernst von Glasersfeld
qsaart-x-salhariSalhari2013-12-11Alex Sands
qsbart-x-sambahsaSambahsa2015-03-15Olivier Simon
qseart-x-skerreSkerre2015-03-16Doug Ball
qsfart-x-verduriaVerdurian2015-03-15Mark Rosenfelder
qsgart-x-sagaviSagavi2013-12-07Paul Jones
qshart-x-shikathiShikathi2014-11-03James Allen
qsiart-x-silosSilōs2015-01-10Clayton Williams & Andrew John Bevolo IV
qsjart-x-shajShaj2016-01-23Joshua Levin
qskart-x-sakasulSakasul2014-11-03Kenji Sawatari
qslart-x-silindioSilindion2015-03-16Elliott Lash
qsnart-x-sandicSandic2014-11-03A.C. Simon
qsoart-x-solresolSolresol2015-01-08François Sudre
qspart-x-spokilSpokil2015-03-15Adolphe Nicolas
qsrart-x-serenSeren2013-11-22Inara Tabir
qssart-x-sasxsekSasxsek2010-01-23Dana Nutter
qsvart-x-slovioSlovio2015-03-15Mark Hučko
qsxart-x-sonaSona2015-03-15Kenneth Searight
qsyart-x-syldaviaSyldavian2015-03-15Hergé
qtaart-x-aeonianTongue of Annunciation2013-10-27B. Gian James
qtbart-x-vitebergViteberger2014-11-03Renato Piereck
qteart-x-telerinTelerin2015-05-25J.R.R. Tolkien
qtiart-x-tiraneseTiranese2016-06-24Tiffany White
qtkart-x-tokiponaToki Pona2010-01-21Sonja Elen Kisa
qtlart-x-tsolyaniTsolyáni2015-03-15M.A.R. Barker
qtmart-x-tmasareTmaśareʔ2011-09-22Jan Strasser
qtnart-x-teonahtTeonaht2015-03-15Sally Caves
qtrart-x-tirelatTirelat2012-10-19Herman Miller
qtsart-x-tsanTsan2013-05-16Waahlis
qtvart-x-tvernelTvern El2011-09-21Adam Walker
qtyart-x-treyllTreyll2013-11-29Andrea Greynolds
qtzart-x-knastaKnašta2013-12-20Ian Duncan

Roadmap to the CLCR

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qbaqbbqbcqbdqbeqbfqbgqbhqbiqbjqbkqblqbmqbnqboqbpqbqqbrqbsqbtqbuqbvqbwqbxqbyqbz
qcaqcbqccqcdqceqcfqcgqchqciqcjqckqclqcmqcnqcoqcpqcqqcrqcsqctqcuqcvqcwqcxqcyqcz
qdaqdbqdcqddqdeqdfqdgqdhqdiqdjqdkqdlqdmqdnqdoqdpqdqqdrqdsqdtqduqdvqdwqdxqdyqdz
qeaqebqecqedqeeqefqegqehqeiqejqekqelqemqenqeoqepqeqqerqesqetqeuqevqewqexqeyqez
qfaqfbqfcqfdqfeqffqfgqfhqfiqfjqfkqflqfmqfnqfoqfpqfqqfrqfsqftqfuqfvqfwqfxqfyqfz
qgaqgbqgcqgdqgeqgfqggqghqgiqgjqgkqglqgmqgnqgoqgpqgqqgrqgsqgtqguqgvqgwqgxqgyqgz
qhaqhbqhcqhdqheqhfqhgqhhqhiqhjqhkqhlqhmqhnqhoqhpqhqqhrqhsqhtqhuqhvqhwqhxqhyqhz
qiaqibqicqidqieqifqigqihqiiqijqikqilqimqinqioqipqiqqirqisqitqiuqivqiwqixqiyqiz
qjaqjbqjcqjdqjeqjfqjgqjhqjiqjjqjkqjlqjmqjnqjoqjpqjqqjrqjsqjtqjuqjvqjwqjxqjyqjz
qkaqkbqkcqkeqkfqkgqkhqkiqkjqkkqklqkmqknqkoqkpqkqqkrqksqktqkuqkvqkwqkxqkyqkz
qlaqlbqlcqldqleqlfqlgqlhqliqljqlkqllqlmqlnqloqlpqlqqlrqlsqltqluqlvqlwqlxqlyqlz
qmaqmbqmcqmdqmeqmfqmgqmhqmiqmjqmkqmlqmmqmnqmoqmpqmqqmrqmsqmtqmuqmvqmwqmxqmyqmz
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qoaqobqodqoeqofqogqohqoiqojqokqolqomqonqooqopqoqqorqosqotqouqovqowqoxqoyqoz
qpaqpbqpcqpdqpeqpfqpgqphqpiqpjqpkqplqpmqpnqpoqppqpqqprqpsqptqpuqpvqpwqpxqpyqpz
qqaqqbqqcqqdqqeqqfqqgqqhqqiqqjqqkqqlqqmqqnqqoqqpqqqqqrqqsqqtqquqqvqqwqqxqqyqqz
qraqrbqrcqrdqreqrfqrgqrhqriqrjqrkqrlqrmqrnqroqrpqrqqrrqrsqrtqruqrvqrwqrxqryqrz
qsaqsbqscqsdqseqsfqsgqshqsiqsjqskqslqsmqsnqsoqspqsqqsrqssqstqsuqsvqswqsxqsyqsz
qtaqtbqtcqtdqteqtfqtgqthqtiqtjqtkqtlqtmqtnqtoqtpqtqqtrqtsqttqtuqtvqtwqtxqtyqtz
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