ISO 639:x

|-
|xac || || ||B ||Y ||Kachari||&nbsp;
|-
|xad || || ||B ||Ö ||Adai||&nbsp;
|-
|xae || || ||B ||A ||Aequian||&nbsp;
|-
|xag || || ||B ||Ö ||Aghwan||&nbsp;
|-
|xah || || ||B ||Y ||Kahayan||&nbsp;
|-
|xai || || ||B ||Ö ||Kaimbé||&nbsp;
|-
|xal ||xal || ||B ||Y ||Kalmyk; Oirat||&nbsp;
|-
|xam || || ||B ||Ö ||/Xam||&nbsp;
|-
|xan || || ||B ||Y ||Xamtanga||&nbsp;
|-
|xao || || ||B ||Y ||Khao||&nbsp;
|-
|xap || || ||B ||Ö ||Apalachee||&nbsp;
|-
|xaq || || ||B ||A ||Aquitanian||&nbsp;
|-
|xar || || ||B ||Ö ||Karami||&nbsp;
|-
|xas || || ||B ||Ö ||Kamas||&nbsp;
|-
|xat || || ||B ||Y ||Katawixi||&nbsp;
|-
|xau || || ||B ||Y ||Kauwera||&nbsp;
|-
|xav || || ||B ||Y ||Xavánte||&nbsp;
|-
|xaw || || ||B ||Y ||Kawaiisu||&nbsp;
|-
|xay || || ||B ||Y ||Kayan Mahakam||&nbsp;
|-
|xba || || ||B ||Ö ||Kamba (Brazil)||&nbsp;
|-
|xbc || || ||B ||A ||Bactrian||&nbsp;
|-
|xbi || || ||B ||Y ||Kombio||&nbsp;
|-
|xbm || || ||B ||T ||Breton, Middle||&nbsp;
|-
|xbo || || ||B ||Ö ||Bolgarian||&nbsp;
|-
|xbr || || ||B ||Y ||Kambera||&nbsp;
|-
|xbw || || ||B ||Ö ||Kambiwá||&nbsp;
|-
|xbx || || ||B ||Y ||Kabixí||&nbsp;
|-
|xcb || || ||B ||Ö ||Cumbric||&nbsp;
|-
|xcc || || ||B ||A ||Camunic||&nbsp;
|-
|xce || || ||B ||A ||Celtiberian||&nbsp;
|-
|xcg || || ||B ||A ||Gaulish, Cisalpine||&nbsp;
|-
|xch || || ||B ||Ö ||Chemakum||&nbsp;
|-
|xcl || || ||B ||T ||Armenian, Classical||&nbsp;
|-
|xcm || || ||B ||Ö ||Comecrudo||&nbsp;
|-
|xcn || || ||B ||Ö ||Cotoname||&nbsp;
|-
|xco || || ||B ||A ||Chorasmian||&nbsp;
|-
|xcr || || ||B ||A ||Carian||&nbsp;
|-
|xct || || ||B ||T ||Tibetan, Classical||&nbsp;
|-
|xcu || || ||B ||Ö ||Curonian||&nbsp;
|-
|xcv || || ||B ||Ö ||Chuvantsy||&nbsp;
|-
|xcw || || ||B ||Ö ||Coahuilteco||&nbsp;
|-
|xcy || || ||B ||Ö ||Cayuse||&nbsp;
|-
|xdc || || ||B ||A ||Dacian||&nbsp;
|-
|xdm || || ||B ||A ||Edomite||&nbsp;
|-
|xdy || || ||B ||Y ||Malayic Dayak||&nbsp;
|-
|xeb || || ||B ||A ||Eblan||&nbsp;
|-
|xed || || ||B ||Y ||Hdi||&nbsp;
|-
|xeg || || ||B ||Ö ||//Xegwi||&nbsp;
|-
|xel || || ||B ||Y ||Kelo||&nbsp;
|-
|xem || || ||B ||Y ||Kembayan||&nbsp;
|-
|xep || || ||B ||A ||Epi-Olmec||&nbsp;
|-
|xer || || ||B ||Y ||Xerénte||&nbsp;
|-
|xes || || ||B ||Y ||Kesawai||&nbsp;
|-
|xet || || ||B ||Y ||Xetá||&nbsp;
|-
|xeu || || ||B ||Y ||Keuru||&nbsp;
|-
|xfa || || ||B ||A ||Faliscan||&nbsp;
|-
|xga || || ||B ||A ||Galatian||&nbsp;
|-
|xgf || || ||B ||Ö ||Gabrielino-Fernandeño||&nbsp;
|-
|xgl || || ||B ||Ö ||Galindan||&nbsp;
|-
|xgr || || ||B ||Ö ||Garza||&nbsp;
|-
|xha || || ||B ||A ||Harami||&nbsp;
|-
|xhc || || ||B ||Ö ||Hunnic||&nbsp;
|-
|xhd || || ||B ||A ||Hadrami||&nbsp;
|-
|xhe || || ||B ||Y ||Khetrani||&nbsp;
|-
|xho ||xho ||xh ||B ||Y ||Xhosa||&nbsp;
|-
|xhr || || ||B ||A ||Hernican||&nbsp;
|-
|xht || || ||B ||A ||Hattic||&nbsp;
|-
|xhu || || ||B ||A ||Hurrian||&nbsp;
|-
|xhv || || ||B ||Y ||Khua||&nbsp;
|-
|xia || || ||B ||Y ||Xiandao||&nbsp;
|-
|xib || || ||B ||A ||Iberian||&nbsp;
|-
|xii || || ||B ||Y ||Xiri||&nbsp;
|-
|xil || || ||B ||A ||Illyrian||&nbsp;
|-
|xin || || ||B ||Ö ||Xinca||&nbsp;
|-
|xip || || ||B ||Ö ||Xipináwa||&nbsp;
|-
|xir || || ||B ||Y ||Xiriâna||&nbsp;
|-
|xiv || || ||B ||A ||Indus Valley Language||&nbsp;
|-
|xiy || || ||B ||Y ||Xipaya||&nbsp;
|-
|xka || || ||B ||Y ||Kalkoti||&nbsp;
|-
|xkb || || ||B ||Y ||Ede Nago, Manigri-Kambolé||&nbsp;
|-
|xkc || || ||B ||Y ||Kho'ini||&nbsp;
|-
|xkd || || ||B ||Y ||Kayan, Mendalam||&nbsp;
|-
|xke || || ||B ||Y ||Kereho-Uheng||&nbsp;
|-
|xkf || || ||B ||Y ||Khengkha||&nbsp;
|-
|xkg || || ||B ||Y ||Kagoro||&nbsp;
|-
|xkh || || ||B ||Y ||Karahawyana||&nbsp;
|-
|xki || || ||B ||Y ||Kenyan Sign Language||&nbsp;
|-
|xkj || || ||B ||Y ||Kajali||&nbsp;
|-
|xkk || || ||B ||Y ||Kaco'||&nbsp;
|-
|xkl || || ||B ||Y ||Kenyah, Kelinyau||&nbsp;
|-
|xkm || || ||B ||Y ||Kenyah, Mahakam||&nbsp;
|-
|xkn || || ||B ||Y ||Kayan, Kayan River||&nbsp;
|-
|xko || || ||B ||Y ||Kiorr||&nbsp;
|-
|xkp || || ||B ||Y ||Kabatei||&nbsp;
|-
|xkq || || ||B ||Y ||Koroni||&nbsp;
|-
|xkr || || ||B ||Ö ||Xakriabá||&nbsp;
|-
|xks || || ||B ||Y ||Kumbewaha||&nbsp;
|-
|xkt || || ||B ||Y ||Kantosi||&nbsp;
|-
|xku || || ||B ||Y ||Kaamba||&nbsp;
|-
|xkv || || ||B ||Y ||Kgalagadi||&nbsp;
|-
|xkw || || ||B ||Y ||Kembra||&nbsp;
|-
|xkx || || ||B ||Y ||Karore||&nbsp;
|-
|xky || || ||B ||Y ||Kenyah, Western||&nbsp;
|-
|xkz || || ||B ||Y ||Kurtokha||&nbsp;
|-
|xla || || ||B ||Y ||Kamula||&nbsp;
|-
|xlb || || ||B ||Ö ||Loup B||&nbsp;
|-
|xlc || || ||B ||A ||Lycian||&nbsp;
|-
|xld || || ||B ||A ||Lydian||&nbsp;
|-
|xle || || ||B ||A ||Lemnian||&nbsp;
|-
|xlg || || ||B ||A ||Ligurian (Ancient)||&nbsp;
|-
|xli || || ||B ||A ||Liburnian||&nbsp;
|-
|xln || || ||B ||A ||Alanic||&nbsp;
|-
|xlo || || ||B ||Ö ||Loup A||&nbsp;
|-
|xlp || || ||B ||A ||Lepontic||&nbsp;
|-
|xls || || ||B ||A ||Lusitanian||&nbsp;
|-
|xlu || || ||B ||A ||Luwian, Cuneiform||&nbsp;
|-
|xly || || ||B ||A ||Elymian||&nbsp;
|-
|xma || || ||B ||Y ||Mushungulu||&nbsp;
|-
|xmb || || ||B ||Y ||Mbonga||&nbsp;
|-
|xmc || || ||B ||Y ||Makhuwa-Marrevone||&nbsp;
|-
|xmd || || ||B ||Y ||Mbedam||&nbsp;
|-
|xme || || ||B ||A ||Median||&nbsp;
|-
|xmf || || ||B ||Y ||Mingrelian||&nbsp;
|-
|xmg || || ||B ||Y ||Mengaka||&nbsp;
|-
|xmh || || ||B ||Y ||Kuku-Muminh||&nbsp;
|-
|xmi || || ||B ||Y ||Miarrã||&nbsp;
|-
|xmj || || ||B ||Y ||Majera||&nbsp;
|-
|xmk || || ||B ||A ||Macedonian, Ancient||&nbsp;
|-
|xml || || ||B ||Y ||Malaysian Sign Language||&nbsp;
|-
|xmm || || ||B ||Y ||Malay, Manado||&nbsp;
|-
|xmo || || ||B ||Y ||Morerebi||&nbsp;
|-
|xmp || || ||B ||Y ||Kuku-Mu'inh||&nbsp;
|-
|xmq || || ||B ||Y ||Kuku-Mangk||&nbsp;
|-
|xmr || || ||B ||A ||Meroitic||&nbsp;
|-
|xms || || ||B ||Y ||Moroccan Sign Language||&nbsp;
|-
|xmt || || ||B ||Y ||Matbat||&nbsp;
|-
|xmu || || ||B ||Y ||Kamu||&nbsp;
|-
|xmv || || ||B ||Y ||Malagasy, Antankarana||&nbsp;
|-
|xmw || || ||B ||Y ||Malagasy, Tsimihety||&nbsp;
|-
|xmx || || ||B ||Y ||Maden||&nbsp;
|-
|xmy || || ||B ||Y ||Mayaguduna||&nbsp;
|-
|xmz || || ||B ||Y ||Mori Bawah||&nbsp;
|-
|xna || || ||B ||A ||North Arabian, Ancient||&nbsp;
|-
|xnb || || ||B ||Y ||Kanakanabu||&nbsp;
|-
|xng || || ||B ||T ||Mongolian, Middle||&nbsp;
|-
|xnh || || ||B ||Y ||Kuanhua||&nbsp;
|-
|xnn || || ||B ||Y ||Kankanay, Northern||&nbsp;
|-
|xno || || ||B ||T ||Anglo-Norman||&nbsp;
|-
|xnr || || ||B ||Y ||Kangri||&nbsp;
|-
|xns || || ||B ||Y ||Kanashi||&nbsp;
|-
|xod || || ||B ||Y ||Kokoda||&nbsp;
|-
|xog || || ||B ||Y ||Soga||&nbsp;
|-
|xoi || || ||B ||Y ||Kominimung||&nbsp;
|-
|xok || || ||B ||Y ||Xokleng||&nbsp;
|-
|xom || || ||B ||Y ||Komo (Sudan)||&nbsp;
|-
|xon || || ||B ||Y ||Konkomba||&nbsp;
|-
|xoo || || ||B ||Ö ||Xukurú||&nbsp;
|-
|xop || || ||B ||Y ||Kopar||&nbsp;
|-
|xor || || ||B ||Y ||Korubo||&nbsp;
|-
|xow || || ||B ||Y ||Kowaki||&nbsp;
|-
|xpc || || ||B ||Ö ||Pecheneg||&nbsp;
|-
|xpe || || ||B ||Y ||Kpelle, Liberia||&nbsp;
|-
|xpg || || ||B ||A ||Phrygian||&nbsp;
|-
|xpi || || ||B ||Ö ||Pictish||&nbsp;
|-
|xpm || || ||B ||Ö ||Pumpokol||&nbsp;
|-
|xpn || || ||B ||Ö ||Kapinawá||&nbsp;
|-
|xpo || || ||B ||Ö ||Pochutec||&nbsp;
|-
|xpp || || ||B ||Ö ||Puyo-Paekche||&nbsp;
|-
|xpr || || ||B ||A ||Parthian||&nbsp;
|-
|xps || || ||B ||Ö ||Pisidian||&nbsp;
|-
|xpu || || ||B ||A ||Punic||&nbsp;
|-
|xpy || || ||B ||Ö ||Puyo||&nbsp;
|-
|xqt || || ||B ||A ||Qatabanian||&nbsp;
|-
|xra || || ||B ||Y ||Krahô||&nbsp;
|-
|xrb || || ||B ||Y ||Karaboro, Eastern||&nbsp;
|-
|xre || || ||B ||Y ||Kreye||&nbsp;
|-
|xri || || ||B ||Y ||Krikati-Timbira||&nbsp;
|-
|xrm || || ||B ||Ö ||Armazic||&nbsp;
|-
|xrn || || ||B ||Ö ||Arin||&nbsp;
|-
|xrr || || ||B ||A ||Raetic||&nbsp;
|-
|xrt || || ||B ||Ö ||Aranama-Tamique||&nbsp;
|-
|xrw || || ||B ||Y ||Karawa||&nbsp;
|-
|xsa || || ||B ||A ||Sabaean||&nbsp;
|-
|xsb || || ||B ||Y ||Sambal, Tinà||&nbsp;
|-
|xsc || || ||B ||A ||Scythian||&nbsp;
|-
|xsd || || ||B ||A ||Sidetic||&nbsp;
|-
|xse || || ||B ||Y ||Sempan||&nbsp;
|-
|xsh || || ||B ||Y ||Shamang||&nbsp;
|-
|xsi || || ||B ||Y ||Sio||&nbsp;
|-
|xsj || || ||B ||Y ||Subi||&nbsp;
|-
|xsk || || ||B ||A ||Sakan||&nbsp;
|-
|xsl || || ||B ||Y ||Slavey, South||&nbsp;
|-
|xsm || || ||B ||Y ||Kasem||&nbsp;
|-
|xsn || || ||B ||Y ||Sanga (Nigeria)||&nbsp;
|-
|xso || || ||B ||Ö ||Solano||&nbsp;
|-
|xsp || || ||B ||Y ||Silopi||&nbsp;
|-
|xsq || || ||B ||Y ||Makhuwa-Saka||&nbsp;
|-
|xsr || || ||B ||Y ||Sherpa||&nbsp;
|-
|xss || || ||B ||Ö ||Assan||&nbsp;
|-
|xst || || ||B ||Y ||Silt'e||&nbsp;
|-
|xsu || || ||B ||Y ||Sanumá||&nbsp;
|-
|xsv || || ||B ||Ö ||Sudovian||&nbsp;
|-
|xsy || || ||B ||Y ||Saisiyat||&nbsp;
|-
|xta || || ||B ||Y ||Mixtec, Alcozauca||&nbsp;
|-
|xtb || || ||B ||Y ||Mixtec, Chazumba||&nbsp;
|-
|xtc || || ||B ||Y ||Katcha-Kadugli-Miri||&nbsp;
|-
|xtd || || ||B ||Y ||Mixtec, Diuxi-Tilantongo||&nbsp;
|-
|xte || || ||B ||Y ||Ketengban||&nbsp;
|-
|xtg || || ||B ||A ||Gaulish, Transalpine||&nbsp;
|-
|xti || || ||B ||Y ||Mixtec, Sinicahua||&nbsp;
|-
|xtj || || ||B ||Y ||Mixtec, San Juan Teita||&nbsp;
|-
|xtl || || ||B ||Y ||Mixtec, Tijaltepec||&nbsp;
|-
|xtm || || ||B ||Y ||Mixtec, Magdalena Peñasco||&nbsp;
|-
|xtn || || ||B ||Y ||Mixtec, Northern Tlaxiaco||&nbsp;
|-
|xto || || ||B ||A ||Tokharian A||&nbsp;
|-
|xtp || || ||B ||Y ||Mixtec, San Miguel Piedras||&nbsp;
|-
|xtr || || ||B ||A ||Tripuri, Early||&nbsp;
|-
|xts || || ||B ||Y ||Mixtec, Sindihui||&nbsp;
|-
|xtt || || ||B ||Y ||Mixtec, Tacahua||&nbsp;
|-
|xtu || || ||B ||Y ||Mixtec, Cuyamecalco||&nbsp;
|-
|xty || || ||B ||Y ||Mixtec, Yoloxochitl||&nbsp;
|-
|xtz || || ||B ||Ö ||Tasmanian||&nbsp;
|-
|xua || || ||B ||Y ||Kurumba, Alu||&nbsp;
|-
|xub || || ||B ||Y ||Kurumba, Betta||&nbsp;
|-
|xuf || || ||B ||Y ||Kunfal||&nbsp;
|-
|xug || || ||B ||Y ||Kunigami||&nbsp;
|-
|xuj || || ||B ||Y ||Kurumba, Jennu||&nbsp;
|-
|xum || || ||B ||A ||Umbrian||&nbsp;
|-
|xuo || || ||B ||Y ||Kuo||&nbsp;
|-
|xup || || ||B ||Ö ||Umpqua, Upper||&nbsp;
|-
|xur || || ||B ||A ||Urartian||&nbsp;
|-
|xut || || ||B ||Y ||Kuthant||&nbsp;
|-
|xuu || || ||B ||Y ||Kxoe||&nbsp;
|-
|xve || || ||B ||A ||Venetic||&nbsp;
|-
|xvi || || ||B ||Y ||Kamviri||&nbsp;
|-
|xvn || || ||B ||A ||Vandalic||&nbsp;
|-
|xvo || || ||B ||A ||Volscian||&nbsp;
|-
|xvs || || ||B ||A ||Vestinian||&nbsp;
|-
|xwc || || ||B ||Ö ||Woccon||&nbsp;
|-
|xwe || || ||B ||Y ||Gbe, Xwela||&nbsp;
|-
|xwg || || ||B ||Y ||Kwegu||&nbsp;
|-
|xwl || || ||B ||Y ||Gbe, Western Xwla||&nbsp;
|-
|xwo || || ||B ||Ö ||Oirat, Written||&nbsp;
|-
|xwr || || ||B ||Y ||Kwerba Mamberamo||&nbsp;
|-
|xxk || || ||B ||Y ||Ke'o||&nbsp;
|-
|xzh || || ||B ||A ||Zhang-Zhung||&nbsp;
|-
|xzm || || ||B ||Ö ||Zemgalian||&nbsp;
|}