36:
3038:
script codes for the
Fraktur and Gaelic variants of the Latin script, which are mostly encoded with regular Latin letters in Unicode and ISO/IEC 10646). They may occasionally be useful in language tags to expose orthographic or semantic differences, with different analysis of letters, diacritics, and
2960:
To avoid breaking implementations that may still depend on the older (exclusive) definition of these collections, ISO 639-5 defines a grouping type attribute for all collections that were already encoded in ISO 639-2 (such grouping type is not defined for the new collections added only in ISO 639-5).
2956:
was previously associated with the name "Afro-Asiatic (Other)", excluding languages such as Arabic that already had their own code. In ISO 639-5, this collection is named "Afro-Asiatic languages" and includes all such languages. ISO 639-2 changed the exclusive names in 2009 to match the inclusive ISO
2968:
ISO 639-5 does not define precisely which languages are members of these collections; only the hierarchical classification of collections is defined, using the inclusive definition of these collections. Because of this, RFC 5646 does not recommend the use of subtags for language collections for most
2948:
in ISO 639-2). Specifically, the language collections are now all defined in ISO 639-5 as inclusive, rather than some of them being defined exclusively. This means that language collections have a broader scope than before, in some cases where they could encompass languages that were already encoded
495:
The use, interpretation and matching of IETF language tags is currently defined in RFC 5646 and RFC 4647. The
Language Subtag Registry lists all currently valid public subtags. Private-use subtags are not included in the Registry as they are implementation-dependent and subject to private agreements
2964:
BCP 47 defines a "Scope" property to identify subtags for language collections. However, it does not define any given collection as inclusive or exclusive, and does not use the ISO 639-5 grouping type attribute, although the description fields in the
Language Subtag Registry for these subtags match
2987:
Some primary language subtags are defined with a property named "Suppress-Script" which indicates the cases where a single script can usually be assumed by default for the language, even if it can be written with another script. When this is the case, it is preferable to omit the script subtag, to
265:
and RFC 4647 (which deals with matching behaviour). RFC 4646 introduced a more structured format for language tags, added the use of ISO 15924 four-letter script codes and UN M.49 three-digit geographical region codes, and replaced the old registry of tags with a new registry of subtags. The small
327:
composed of three letters each, separated by hyphens; (There is currently no extended language subtag registered in the
Language Subtag Registry without an equivalent and preferred primary language subtag. This component of language tags is preserved for backwards compatibility and to allow for
2882:
Whole tags that were registered prior to RFC 4646 and are now classified as "grandfathered" or "redundant" (depending on whether they fit the new syntax) are deprecated in favor of the corresponding ISO 639-3–based language subtag, if one exists. To list a few examples,
3841:(also referencing the related informational RFC 5645, which complements the previous informational RFC 4645, as well other individual registration forms published separately by others for each language added or modified in the Registry between these BCP 47 revisions)
3141:
Disagreements about language identification may extend to BCP 47 and to the core standards that inform it. For example, some speakers of
Punjabi believe that the ISO 639-3 distinction between "Panjabi" and "Western Panjabi" is spurious (i.e. they feel the two are
3161:
BCP 47 delegates this type of judgment to the core standards, and does not attempt to overrule or supersede them. Variant subtags and (theoretically) primary language subtags may be registered individually, but not in a way that contradicts the core standards.
3011:, because the region code is probably not significant; the written form of Chinese used in Singapore uses the same simplified Chinese characters as in other countries where Chinese is written. However, the script subtag is maintained because it is significant.
504:
The following is a list of some of the more commonly used primary language subtags. The list represents only a small subset (less than 2 percent) of primary language subtags; for full information, the
Language Subtag Registry should be consulted directly.
2866:
codes for all languages that did not already exist in the
Registry. In addition, codes for languages encompassed by certain macrolanguages were registered as extended language subtags. Sign languages were also registered as extlangs, with the prefix
3068:
Region subtags are used to specify the variety of a language "as used in" a particular region. They are appropriate when the variety is regional in nature, and can be captured adequately by identifying the countries involved, as when distinguishing
2843:
remains a valid (though deprecated) subtag even if the code is withdrawn from the corresponding core standard. If the standard later assigns a new meaning to the withdrawn code, the corresponding subtag will still retain its old meaning.
3057:. If the ISO 3166 Maintenance Agency were to reassign a code that had previously been assigned to a different country, the existing BCP 47 subtag corresponding to that code would retain its meaning, and a new region subtag based on
251:, published in March 1995. The tags used ISO 639 two-letter language codes and ISO 3166 two-letter country codes, and allowed registration of whole tags that included variant or script subtags of three to eight letters.
2965:
the ISO 639-5 (inclusive) names. As a consequence, BCP 47 language tags that include a primary language subtag for a collection may be ambiguous as to whether the collection is intended to be inclusive or exclusive.
3214:
could be used for content in
English that was translated from the original Japanese. Additional substrings could indicate that the translation was done mechanically, or in accordance with a published standard.
3112:
When a distinct language subtag exists for a language that could be considered a regional variety, it is often preferable to use the more specific subtag instead of a language-region combination. For example,
491:
identifiers in many applications. It may be necessary for these applications to establish their own strategy for defining, encoding and matching locales if the strategy described in RFC 4647 is not adequate.
3177:) allow additional information to be attached to a language tag that does not necessarily serve to identify a language. One use for extensions is to encode locale information, such as calendar and currency.
365:, separated by hyphens, each composed of five to eight letters, or of four characters starting with a digit; (Variant subtags are registered with IANA and not associated with any external standard.)
2940:
defines language collections with alpha-3 codes in a different way than they were initially encoded in ISO 639-2 (including one code already present in ISO 639-1, Bihari coded inclusively as
2827:
core standards, they do not follow these standards absolutely, as this could lead to the meaning of language tags changing over time. In particular, a subtag derived from a code assigned by
58:
3234:(CLDR) to be embedded in language tags. These attributes include country subdivisions, calendar and time zone data, collation order, currency, number system, and keyboard identification.
433:
Not all linguistic regions can be represented with a valid region subtag: the subnational regional dialects of a primary language are registered as variant subtags. For example, the
261:
The next revision of the specification came in
September 2006 with the publication of RFC 4646 (the main part of the specification), edited by Addison Philips and
273:
The current version of the specification, RFC 5646, was published in
September 2009. The main purpose of this revision was to incorporate three-letter codes from
3210:
Extension T allows a language tag to include information on how the tagged data was transliterated, transcribed, or otherwise transformed. For example, the tag
2984:. They are encoded in the language tag after primary and extended language subtags, but before other types of subtag, including region and variant subtags.
3030:. These script variants are most often encoded for bibliographic purposes, but are not always significant from a linguistic point of view (for example,
2972:
In contrast, the classification of individual languages within their macrolanguage is standardized, in both ISO 639-3 and the Language Subtag Registry.
2988:
improve the likelihood of successful matching. A different script subtag can still be appended to make the distinction when necessary. For example,
258:
three-letter codes, permitted subtags with digits, and adopted the concept of language ranges from HTTP/1.1 to help with matching of language tags.
3882:
2969:
applications, although they are still preferred over subtags whose meaning is even less specific, such as "Multiple languages" and "Undetermined".
456:
Furthermore, there are script tags that do not refer to traditional scripts such as Latin, or even scripts at all, and these usually begin with a
289:
Each language tag is composed of one or more "subtags" separated by hyphens (-). Each subtag is composed of basic Latin letters or digits only.
3912:
2820:
410:
Optional script and region subtags are preferred to be omitted when they add no distinguishing information to a language tag. For example,
3374:
3158:
styles of the Latin script are); and that BCP 47 should reflect these views and/or overrule the core standards with regard to them.
3572:
3061:
would be registered for the new country. UN M.49 is also the source for numeric region subtags for geographical regions, such as
3048:
2980:
Script subtags were first added to the Language Subtag Registry when RFC 4646 was published, from the list of codes defined in
3302:
3180:
Extension subtags are composed of multiple hyphen-separated character strings, starting with a single character (other than
3382:
3354:
3196:
2879:). The first option is preferred for most purposes. The second option is called "extlang form" and is new in RFC 5646.
3641:"Update to the Language Subtag Registry (old draft for the revision of RFC 4645, now obsolete and may disappear soon)"
3284:
Extension U is described in the informational RFC 6067, published in December 2010. The Registration Authority is the
3218:
Extension T is described in the informational RFC 6497, published in February 2012. The Registration Authority is the
3846:
3346:
84:
3704:
3592:
395:, but the specification recommends using the same case as in the Language Subtag Registry, where region subtags are
3664:
157:
3297:
3189:
106:
300:
prefix and those previously registered in the old Language Tag Registry), subtags occur in the following order:
3090:
205:
189:
3619:"Tags for Identifying Languages (old draft for the revision of RFC 4646, now obsolete and may disappear soon)"
3902:
3892:
3231:
3093:
Chinese characters, it should be expressed with a script subtag instead of a region subtag; in this example,
3086:
3887:
320:(2007) or ISO 639-5 (2008), or registered through the BCP 47 process and composed of five to eight letters;
3907:
3679:"ISO 639-2 Language Code List - Codes for the representation of names of languages (Library of Congress)"
710:
340:
281:
into the Language Subtag Registry, in order to increase the interoperability between ISO 639 and BCP 47.
224:
3307:
488:
376:, and a hyphen followed by one or more subtags of two to eight characters each, separated by hyphens;
236:
3859:
66:
62:
46:
3826:
contains two RFCs published separately at different dates, but concatenated in a single document:
3263:
1279:
248:
121:
3428:
2871:. These languages may be represented either with the subtag for the encompassed language alone (
3897:
2920:
1302:
888:
17:
3678:
2340:
372:, separated by hyphens, each composed of a single character, with the exception of the letter
2102:
473:
3794:
3780:
3747:
3733:
3614:
3490:
3448:
3192:
1519:
625:
262:
54:
8:
3465:
2711:
2085:
1990:
1729:
1678:
1353:
1143:
659:
3039:
digraphs/trigraphs as default grapheme clusters, or differences in letter casing rules.
2855:
RFC 4646 defined the concept of an "extended language subtag" (sometimes referred to as
3285:
3219:
3053:
Two-letter region subtags are based on codes assigned, or "exceptionally reserved", in
2656:
2119:
1939:
1763:
1404:
1319:
676:
496:
between third parties using them. These private agreements are out of scope of BCP 47.
438:
387:
and a hyphen followed by subtags of one to eight characters each, separated by hyphens.
351:
201:
3569:
3834:
3640:
3618:
3556:
2374:
2153:
1485:
1468:
1336:
1262:
1192:
1158:
1092:
1041:
971:
905:
803:
608:
193:
165:
3022:
for simplified and traditional forms of Chinese characters) that are unified within
1712:
3784:
3737:
3438:
3249:
3195:, which identifies a Registration Authority to manage the data for that extension.
3143:
3078:
2779:
2620:
2586:
2552:
2448:
2431:
2391:
2289:
2255:
2170:
2136:
2007:
1956:
1854:
1837:
1803:
1695:
1604:
1587:
1421:
1058:
1024:
1005:
954:
941:
767:
744:
693:
642:
578:
442:
407:. This capitalization follows the recommendations of the underlying ISO standards.
173:
149:
2306:
217:
3576:
3273:
3259:
3130:
3118:
3070:
2762:
2637:
2569:
2501:
2465:
2272:
2030:
1888:
1786:
1627:
1570:
1502:
1226:
1126:
1075:
988:
871:
854:
727:
595:
266:
number of previously defined tags that did not conform to the new structure were
125:
3829:
3797:
3750:
3541:
3451:
3432:
3155:
2824:
2745:
2728:
2688:
2603:
2518:
2484:
2414:
2221:
1905:
1820:
1536:
1387:
1209:
1109:
924:
837:
820:
392:
102:
3876:
3147:
3027:
2926:
2908:
2796:
2535:
2238:
1973:
1644:
1370:
267:
3245:
3065:
for South America. The UN M.49 codes for economic regions are not allowed.
1661:
1175:
449:. As this dialect is spoken almost exclusively in Spain, the region subtag
185:
128:(scripts), IETF language tags combine subtags from other standards such as
3772:
3725:
3588:
3277:
2187:
296:
prefix and grandfathered language tags (including those starting with an
3705:"Re: [Ietf-languages] Punjabi language code fix recommendations"
3723:
3054:
2357:
400:
137:
3852:
2996:
in most contexts, because the Hebrew script subtag is assumed for the
2862:
RFC 5645 and RFC 5646 added primary language subtags corresponding to
254:
In January 2001, this was updated by RFC 3066, which added the use of
3789:
3742:
3443:
2981:
2937:
2863:
2832:
2323:
1746:
1438:
525:
404:
396:
336:
317:
313:
309:
278:
274:
255:
209:
133:
3820:
3332:
3230:
Extension U allows a wide variety of locale attributes found in the
1871:
3515:
2836:
2204:
292:
With the exceptions of private-use language tags beginning with an
177:
65:
external links, and converting useful links where appropriate into
3402:
3085:). When the difference is one of script or script variety, as for
418:, as Spanish is fully expected to be written in the Latin script;
3151:
3122:
3058:
3023:
2997:
2892:
2828:
1922:
1553:
542:
141:
129:
3516:"Portable Network Graphics (PNG) Specification (Second Edition)"
3150:
should be encoded separately in ISO 15924 (as, for example, the
3014:
ISO 15924 includes some codes for script variants (for example,
105:
on the Internet. The tag structure has been standardized by the
3770:
3724:
Davis, M.; Phillips, A.; Umaoka, Y.; Falk, C. (February 2012).
2929:
and later versions of Microsoft Windows have RFC 4646 support.
2840:
2066:
784:
559:
355:
445:
is registered in the Language Subtag Registry with the prefix
3434:
Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content
3276:, and in the "Asia/Jerusalem" time zone as identified in the
3272:
represents Hebrew as spoken in Israel, using the traditional
2625:
2453:
1592:
1245:
465:
247:
IETF language tags were first defined in RFC 1766, edited by
3869:" – from the IETF Language Tag Registry Update working group
3612:
1893:
354:(usually written in upper case), or a three-digit code from
3696:
2669:
2047:
1825:
228:
3866:
2859:), although no such subtags were registered at that time.
499:
430:
does not differ markedly from Japanese as used elsewhere.
1961:
232:
3427:
Fielding, Roy T.; Reschke, Julian F., eds. (June 2014).
2975:
2018:
3491:"Extensible Markup Language (XML) 1.0 (Fifth Edition)"
3202:
Two extensions have been assigned as of January 2014.
3049:
Country code top-level domain § Historical ccTLDs
2875:
for Mandarin) or with a language-extlang combination (
2471:
1180:
715:
3771:
Davis, M.; Phillips, A.; Umaoka, Y. (December 2010).
2107:
1131:
3205:
1290:
1284:
790:
2311:
2243:
1649:
1307:
893:
1097:
270:in order to maintain compatibility with RFC 3066.
3555:Phillips, Addison; Davis, Mark (September 2009).
3540:Phillips, Addison; Davis, Mark (September 2006).
3331:Phillips, Addison; Davis, Mark (September 2009).
2192:
1524:
630:
49:may not follow Knowledge's policies or guidelines
3874:
2819:Although some types of subtags are derived from
2716:
2362:
2345:
2090:
1995:
1734:
1683:
1358:
664:
583:
120:To distinguish language variants for countries,
101:is a standardized code that is used to identify
3855:– find subtags and view entries in the Registry
3426:
3225:
2328:
1944:
1774:
1768:
1751:
1455:
1449:
1443:
1409:
1324:
681:
530:
3665:"GetGeoInfoA function (winnls.h) - Win32 apps"
3136:
2814:
2379:
2209:
2158:
1490:
1473:
1341:
1267:
1197:
1163:
1046:
976:
808:
613:
3554:
3539:
3330:
2784:
2591:
2557:
2436:
2402:
2396:
2294:
2260:
2175:
2141:
2124:
2012:
1927:
1859:
1842:
1808:
1700:
1615:
1609:
1558:
1426:
1063:
1029:
1011:
959:
911:
772:
755:
749:
698:
647:
547:
2932:
2767:
2643:
2574:
2506:
2277:
2072:
2035:
1876:
1791:
1632:
1575:
1507:
1232:
1080:
993:
876:
859:
732:
565:
3557:"RFC 5646 - Tags for Identifying Languages"
2847:This stability was introduced in RFC 4646.
2750:
2733:
2699:
2693:
2608:
2523:
2489:
2419:
2226:
1910:
1717:
1541:
1250:
1214:
1114:
929:
842:
825:
3726:"BCP 47 Extension T - Transformed Content"
3638:
3199:is responsible for allocating singletons.
2850:
2801:
2675:
2540:
2053:
1978:
1375:
335:, based on a four-letter script code from
284:
223:It is used by computing standards such as
3835:RFC 5646 - Tags for Identifying Languages
3788:
3741:
3466:"Language information and text direction"
3442:
3333:"Information on BCP 47 » RFC Editor"
3258:represents Arabic-language content using
3188:. Each extension is described in its own
3042:
1666:
308:based on a two-letter language code from
85:Learn how and when to remove this message
1616:
1392:
509:Common languages and their IETF subtags
350:based on a two-letter country code from
3883:Internet properties established in 1995
500:List of common primary language subtags
14:
3875:
3542:"RFC 4647 - Matching of Language Tags"
3913:Internationalization and localization
3702:
3303:Internationalization and localization
487:IETF language tags have been used as
3830:RFC 4647 - Matching of Language Tags
3570:Language Tag Registry Update charter
3326:
3324:
3322:
2976:ISO 15924, ISO/IEC 10646 and Unicode
2472:
2054:
2019:
791:
113:; the subtags are maintained by the
29:
3383:Internet Assigned Numbers Authority
3355:Internet Assigned Numbers Authority
2676:
2644:
2073:
1233:
1012:
912:
566:
312:(2002) or a three-letter code from
24:
3375:"Language Tag Extensions Registry"
25:
3924:
3814:
3589:"Letter Codes of Cultures - List"
3319:
3206:Extension T (Transformed Content)
3007:may be considered equivalent to
2952:For example, the ISO 639-2 code
34:
27:Code to identify human languages
3853:Language Subtag Registry Search
3764:
3717:
3671:
3657:
3632:
3606:
3595:from the original on 2022-08-07
3581:
3563:
3548:
3298:Codes for constructed languages
107:Internet Engineering Task Force
3533:
3508:
3483:
3458:
3420:
3395:
3367:
3339:
2785:
1775:
1291:
756:
111:Best Current Practice (BCP) 47
13:
1:
3860:Language tags in HTML and XML
3313:
3232:Common Locale Data Repository
3165:
3146:); that sub-varieties of the
3125:) may be better expressed as
2949:separately within ISO 639-2.
115:IANA Language Subtag Registry
3403:"IANA — Protocol Registries"
3270:he-IL-u-ca-hebrew-tz-jeruslm
3226:Extension U (Unicode Locale)
403:, and all other subtags are
7:
3291:
3137:Adherence to core standards
2815:Relation to other standards
1610:
480:to unwritten documents and
10:
3929:
3703:Ewell, Doug (2022-08-12).
3347:"Language Subtag Registry"
3308:Locale (computer software)
3101:should be used instead of
3046:
2227:
1593:
242:
206:traditional Han characters
190:traditional Han characters
3262:(0 through 9) instead of
3175:extended language subtags
3173:(not to be confused with
2933:ISO 639-5 and ISO 639-1/2
2700:
2609:
2541:
2524:
2507:
2490:
2403:
2261:
2210:
2176:
2013:
1979:
1894:
1860:
1809:
1769:
1752:
1735:
1667:
1633:
1576:
1559:
1542:
1508:
1491:
1474:
1456:
1450:
1393:
1342:
1251:
1198:
930:
716:
699:
682:
665:
648:
614:
548:
484:to undetermined scripts.
453:can normally be omitted.
383:, composed of the letter
358:for geographical regions;
328:future parts of ISO 639.)
325:extended language subtags
213:
197:
181:
169:
161:
153:
145:
3847:Language Subtag Registry
3823:– current specification
2674:
2642:
2470:
2071:
2052:
1231:
1010:
910:
789:
564:
99:IETF BCP 47 language tag
3237:Some examples include:
2851:ISO 639-3 and ISO 639-1
2626:
2363:
2346:
2329:
2312:
2108:
1996:
1792:
1308:
1181:
1047:
894:
584:
437:variant subtag for the
306:primary language subtag
285:Syntax of language tags
249:Harald Tveit Alvestrand
144:. For example, the tag
3131:Algerian Spoken Arabic
3043:ISO 3166-1 and UN M.49
2921:American Sign Language
2802:
2768:
2751:
2734:
2717:
2694:
2592:
2575:
2558:
2454:
2437:
2420:
2397:
2380:
2295:
2278:
2244:
2193:
2159:
2142:
2125:
2091:
2036:
1962:
1945:
1928:
1911:
1877:
1843:
1826:
1718:
1701:
1684:
1650:
1525:
1444:
1427:
1410:
1376:
1359:
1325:
1285:
1268:
1215:
1164:
1132:
1115:
1098:
1081:
1064:
1030:
994:
977:
960:
877:
860:
843:
826:
809:
773:
750:
733:
631:
531:
158:Latin American Spanish
3437:. sec. 3.1.3.1.
3047:Further information:
474:mathematical notation
399:, script subtags are
323:Up to three optional
3903:Language identifiers
3893:Request for Comments
3849:– maintained by IANA
3821:BCP 47 Language Tags
3773:"BCP 47 Extension U"
3264:Arabic-script digits
3003:As another example,
339:(usually written in
55:improve this article
3888:Internet governance
3639:Doug Ewell (2008).
1923:Norwegian (Nynorsk)
510:
67:footnote references
3908:Unique identifiers
3613:Addison Phillips,
3575:2007-02-10 at the
3286:Unicode Consortium
3260:Basic Latin digits
3220:Unicode Consortium
2992:is preferred over
2915:is preferred over
2899:is preferred over
2887:is preferred over
2313:åarjelsaemiengiele
1872:Norwegian (Bokmål)
1149:Taetae ni Kiribati
508:
422:is preferred over
414:is preferred over
381:private-use subtag
352:ISO 3166-1 alpha-2
3783:(informational).
3736:(informational).
3171:Extension subtags
3144:the same language
3107:zh-TW/zh-HK/zh-MO
3103:zh-CN/zh-SG/zh-MY
2944:in ISO 639-1 and
2812:
2811:
600:الدارجة المغربية
370:extension subtags
166:Romansh Sursilvan
95:
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87:
16:(Redirected from
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3792:
3790:10.17487/RFC6067
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3745:
3743:10.17487/RFC6497
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3079:American English
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2330:julevusámegiella
2315:
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1982:
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428:as used in Japan
391:Subtags are not
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3248:as used in the
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3071:British English
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3051:
3045:
2978:
2935:
2853:
2817:
2680:
2648:
2476:
2307:Sami (Southern)
2245:davvisámegiella
2239:Sami (Northern)
2077:
2058:
1929:norsk (nynorsk)
1827:Bahasa Malaysia
1309:hornjoserbšćina
1237:
1127:Scottish Gaelic
1016:
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785:Central Kurdish
596:Moroccan Arabic
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441:variant of the
363:variant subtags
287:
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208:, as spoken in
192:, as spoken in
186:Min Nan Chinese
126:writing systems
103:human languages
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3777:rfc-editor.org
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3730:rfc-editor.org
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3646:. IETF WG LTRU
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3621:. IETF WG LTRU
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1895:नेपाली (नेपाल)
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1878:norsk (bokmål)
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1651:Lëtzebuergesch
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1292:српскохрватски
1286:srpskohrvatski
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792:کوردیی ناوەندی
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47:external links
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3898:ISO standards
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1967:
1964:
1960:
1958:
1955:
1954:
1950:
1947:
1943:
1941:
1938:
1937:
1933:
1930:
1926:
1924:
1921:
1920:
1916:
1913:
1909:
1907:
1904:
1903:
1899:
1892:
1890:
1887:
1886:
1882:
1879:
1875:
1873:
1870:
1869:
1865:
1858:
1856:
1853:
1852:
1848:
1845:
1841:
1839:
1836:
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1831:
1828:
1824:
1822:
1819:
1818:
1814:
1807:
1805:
1802:
1801:
1797:
1794:
1790:
1788:
1785:
1784:
1780:
1767:
1765:
1762:
1761:
1757:
1750:
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1740:
1733:
1731:
1728:
1727:
1723:
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1716:
1714:
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1706:
1703:
1699:
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1689:
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1680:
1677:
1676:
1672:
1665:
1663:
1660:
1659:
1655:
1652:
1648:
1646:
1645:Luxembourgish
1643:
1642:
1638:
1631:
1629:
1626:
1625:
1621:
1612:
1608:
1606:
1603:
1602:
1598:
1591:
1589:
1586:
1585:
1581:
1574:
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1569:
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1564:
1557:
1555:
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1551:
1547:
1540:
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1527:
1523:
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1518:
1517:
1513:
1506:
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1496:
1489:
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1479:
1472:
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1467:
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1437:
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1432:
1429:
1425:
1423:
1420:
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1415:
1412:
1408:
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1402:
1398:
1391:
1389:
1386:
1385:
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1378:
1374:
1372:
1369:
1368:
1364:
1361:
1357:
1355:
1352:
1351:
1347:
1340:
1338:
1335:
1334:
1330:
1327:
1323:
1321:
1318:
1317:
1313:
1310:
1306:
1304:
1303:Upper Sorbian
1301:
1300:
1296:
1287:
1283:
1281:
1278:
1277:
1273:
1270:
1266:
1264:
1261:
1260:
1256:
1249:
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1244:
1243:
1239:
1230:
1228:
1225:
1224:
1220:
1217:
1213:
1211:
1208:
1207:
1203:
1196:
1194:
1191:
1190:
1186:
1183:
1179:
1177:
1174:
1173:
1169:
1166:
1162:
1160:
1157:
1156:
1152:
1150:
1147:
1145:
1142:
1141:
1137:
1134:
1130:
1128:
1125:
1124:
1120:
1117:
1113:
1111:
1108:
1107:
1103:
1100:
1096:
1094:
1091:
1090:
1086:
1083:
1079:
1077:
1074:
1073:
1069:
1066:
1062:
1060:
1057:
1056:
1052:
1049:
1045:
1043:
1040:
1039:
1035:
1032:
1028:
1026:
1023:
1022:
1018:
1009:
1007:
1004:
1003:
999:
996:
992:
990:
987:
986:
982:
979:
975:
973:
970:
969:
965:
962:
958:
956:
953:
952:
948:
945:
943:
940:
939:
935:
928:
926:
923:
922:
918:
909:
907:
904:
903:
899:
896:
892:
890:
889:Lower Sorbian
887:
886:
882:
879:
875:
873:
870:
869:
865:
862:
858:
856:
853:
852:
848:
845:
841:
839:
836:
835:
831:
828:
824:
822:
819:
818:
814:
811:
807:
805:
802:
801:
797:
788:
786:
783:
782:
778:
775:
771:
769:
766:
765:
761:
752:
748:
746:
743:
742:
738:
735:
731:
729:
726:
725:
721:
714:
712:
709:
708:
704:
697:
695:
692:
691:
687:
680:
678:
675:
674:
670:
663:
661:
658:
657:
653:
646:
644:
641:
640:
636:
633:
629:
627:
624:
623:
619:
612:
610:
607:
606:
602:
599:
597:
594:
593:
589:
586:
582:
580:
577:
576:
572:
563:
561:
558:
557:
553:
546:
544:
541:
540:
536:
533:
529:
527:
524:
523:
519:
516:
514:English name
513:
512:
506:
497:
493:
490:
485:
483:
479:
475:
471:
467:
463:
460:For example,
459:
454:
452:
448:
444:
440:
436:
431:
429:
425:
421:
417:
413:
408:
406:
402:
398:
394:
386:
382:
378:
375:
371:
367:
364:
360:
357:
353:
349:
348:region subtag
345:
342:
338:
334:
333:script subtag
330:
326:
322:
319:
315:
311:
307:
303:
302:
301:
299:
295:
290:
282:
280:
276:
271:
269:
268:grandfathered
264:
259:
257:
252:
250:
240:
238:
234:
230:
226:
221:
219:
218:Zürich German
214:gsw-u-sd-chzh
211:
207:
203:
195:
191:
187:
179:
175:
167:
159:
151:
143:
139:
135:
131:
127:
123:
118:
116:
112:
108:
104:
100:
89:
86:
78:
68:
64:
63:inappropriate
60:
56:
50:
48:
41:
32:
31:
19:
3801:. Retrieved
3776:
3766:
3754:. Retrieved
3729:
3719:
3708:. Retrieved
3698:
3686:. Retrieved
3682:
3673:
3659:
3648:. Retrieved
3634:
3623:. Retrieved
3608:
3597:. Retrieved
3583:
3565:
3550:
3535:
3523:. Retrieved
3519:
3510:
3498:. Retrieved
3494:
3485:
3473:. Retrieved
3469:
3460:
3433:
3422:
3410:. Retrieved
3406:
3397:
3386:. Retrieved
3378:
3369:
3358:. Retrieved
3350:
3341:
3283:
3269:
3256:ar-u-nu-latn
3255:
3246:Swiss German
3241:
3236:
3229:
3217:
3211:
3209:
3201:
3185:
3184:), called a
3181:
3179:
3174:
3170:
3169:
3160:
3140:
3126:
3114:
3111:
3106:
3102:
3098:
3094:
3082:
3074:
3067:
3052:
3035:
3031:
3019:
3015:
3013:
3008:
3004:
3002:
2993:
2989:
2986:
2979:
2971:
2967:
2963:
2959:
2953:
2951:
2945:
2941:
2936:
2925:
2916:
2912:
2904:
2900:
2896:
2888:
2884:
2881:
2876:
2872:
2868:
2861:
2856:
2854:
2846:
2818:
2358:Sami (Skolt)
2341:Sami (Inari)
1776:ᠮᠤᠨᠭᠭᠤᠯ ᠬᠡᠯᠡ
1176:Swiss German
1148:
517:Native name
503:
494:
486:
481:
477:
469:
461:
457:
455:
450:
446:
434:
432:
427:
423:
419:
415:
411:
409:
390:
384:
380:
379:An optional
373:
369:
362:
347:
346:An optional
332:
331:An optional
324:
305:
297:
293:
291:
288:
272:
260:
253:
246:
222:
119:
114:
110:
98:
96:
81:
72:
57:by removing
44:
3278:tz database
3244:represents
3121:as used in
3091:traditional
2324:Sami (Lule)
2194:Kinyarwanda
2188:Kinyarwanda
1793:Kanien'kéha
1526:kalaallisut
1520:Greenlandic
626:Azerbaijani
198:yue-Hant-HK
182:nan-Hant-TW
176:written in
148:stands for
75:August 2020
3877:Categories
3781:RFC Editor
3734:RFC Editor
3710:2022-08-12
3650:2008-06-23
3625:2008-06-23
3615:Mark Davis
3599:2022-01-08
3388:2018-12-06
3360:2018-12-05
3314:References
3166:Extensions
3087:simplified
3055:ISO 3166-1
3005:zh-Hans-SG
3000:language.
2889:zh-min-nan
2718:Tiếng Việt
2712:Vietnamese
2661:українська
2364:sääʹmǩiõll
2279:slovenčina
2086:Portuguese
1997:Papiamentu
1991:Papiamento
1912:Nederlands
1861:မြန်မာဘာသာ
1770:Монгол хэл
1730:Macedonian
1679:Lithuanian
1354:Indonesian
1144:Gilbertese
913:ދިވެހިބަސް
666:беларуская
660:Belarusian
632:Azərbaycan
585:Mapudungun
579:Mapudungun
464:refers to
401:Title Case
341:Title Case
263:Mark Davis
162:rm-sursilv
138:ISO 3166-1
109:(IETF) in
3186:singleton
2982:ISO 15924
2938:ISO 639-5
2895:Chinese;
2864:ISO 639-3
2833:ISO 15924
2657:Ukrainian
2627:Tamazight
2621:Tamazight
2559:türkmençe
2455:Kiswahili
2449:Kiswahili
2347:sämikielâ
2296:slovenski
2290:Slovenian
2143:Rumantsch
2092:português
1940:Norwegian
1764:Mongolian
1747:Malayalam
1719:Reo Māori
1445:Inuktitut
1439:Inuktitut
1405:Icelandic
1320:Hungarian
734:brezhoneg
683:български
677:Bulgarian
532:Afrikaans
526:Afrikaans
439:Valencian
405:lowercase
397:UPPERCASE
368:Optional
361:Optional
337:ISO 15924
318:ISO 639-3
314:ISO 639-2
310:ISO 639-1
304:A single
275:ISO 639-3
256:ISO 639-2
210:Hong Kong
202:Cantonese
134:ISO 15924
59:excessive
3617:(2008).
3593:Archived
3573:Archived
3407:iana.org
3379:iana.org
3351:iana.org
3292:See also
2905:zh-hakka
2837:ISO 3166
2752:isiXhosa
2645:ئۇيغۇرچە
2576:Setswana
2375:Albanian
2205:Sanskrit
2154:Romanian
2126:runasimi
1702:latviešu
1685:lietuvių
1486:Georgian
1469:Japanese
1428:italiano
1411:íslenska
1337:Armenian
1269:hrvatski
1263:Croatian
1193:Gujarati
1159:Galician
1133:Gàidhlig
1082:français
1065:føroyskt
1048:Filipino
1042:Filipino
972:Estonian
931:Ελληνικά
804:Corsican
757:босански
751:bosanski
609:Assamese
435:valencia
316:(1998),
180:script;
178:Cyrillic
3803:24 June
3756:24 June
3688:28 July
3683:loc.gov
3525:28 July
3500:28 July
3475:28 July
3412:28 July
3212:en-t-jp
3152:Fraktur
3123:Algeria
3099:zh-Hant
3095:zh-Hans
3089:versus
3077:) from
3059:UN M.49
3024:Unicode
3009:zh-Hans
2998:Yiddish
2994:yi-Hebr
2893:Min Nan
2857:extlang
2829:ISO 639
2803:isiZulu
2780:Chinese
2610:Татарча
2587:Turkish
2553:Turkmen
2438:svenska
2432:Swedish
2415:Sesotho
2392:Serbian
2256:Sinhala
2211:संस्कृत
2177:русский
2171:Russian
2137:Romansh
2120:Quechua
2008:Punjabi
1963:occitan
1957:Occitan
1855:Burmese
1838:Maltese
1804:Marathi
1696:Latvian
1605:Kurdish
1588:Konkani
1554:Kannada
1509:Қазақша
1492:ქართული
1422:Italian
1343:Հայերեն
1199:ગુજરાતી
1116:Gaeilge
1093:Frisian
1059:Faroese
1025:Finnish
1006:Persian
995:euskara
961:español
955:Spanish
946:English
942:English
878:Deutsch
844:Cymraeg
827:čeština
768:Catalan
745:Bosnian
717:བོད་ཡིག
711:Tibetan
694:Bengali
649:Башҡорт
643:Bashkir
615:অসমীয়া
567:العربية
543:Amharic
520:Subtag
443:Catalan
416:es-Latn
356:UN M.49
243:History
174:Serbian
170:sr-Cyrl
150:English
142:UN M.49
130:ISO 639
122:regions
53:Please
45:use of
3520:w3.org
3495:w3.org
3470:w3.org
3156:Gaelic
3119:Arabic
2917:sgn-US
2911:; and
2877:zh-cmn
2841:UN M49
2769:Yoruba
2763:Yoruba
2638:Uyghur
2593:Türkçe
2570:Tswana
2525:Тоҷикӣ
2508:తెలుగు
2502:Telugu
2473:ܣܘܪܝܝܐ
2466:Syriac
2404:српски
2398:srpski
2273:Slovak
2160:română
2109:K'iche
2103:K'iche
2067:Pashto
2037:polski
2031:Polish
2020:پنجابی
2014:ਪੰਜਾਬੀ
1889:Nepali
1787:Mohawk
1753:മലയാളം
1634:Кыргыз
1628:Kyrgyz
1594:कोंकणी
1571:Korean
1503:Kazakh
1451:ᐃᓄᒃᑎᑐᑦ
1326:magyar
1227:Hebrew
1165:galego
1076:French
989:Basque
906:Divehi
872:German
855:Danish
774:català
728:Breton
560:Arabic
489:locale
466:emojis
212:; and
204:using
194:Taiwan
188:using
154:es-419
18:BCP 47
3644:(1MB)
3115:ar-DZ
3083:en-US
3075:en-GB
2901:i-hak
2839:, or
2746:Xhosa
2735:Wolof
2729:Wolof
2701:Ўзбек
2695:Uzbek
2689:Uzbek
2677:اُردو
2604:Tatar
2519:Tajik
2491:தமிழ்
2485:Tamil
2381:shqip
2262:සිංහල
2222:Yakut
1980:ଓଡ଼ିଆ
1946:norsk
1906:Dutch
1844:Malti
1821:Malay
1810:मराठी
1713:Maori
1617:کوردی
1611:Kurdî
1560:ಕನ್ನಡ
1543:ខ្មែរ
1537:Khmer
1252:हिंदी
1246:Hindi
1234:עברית
1216:Hausa
1210:Hausa
1110:Irish
1099:Frysk
1031:suomi
1013:فارسى
978:eesti
925:Greek
861:dansk
838:Welsh
821:Czech
810:Corsu
700:বাংলা
424:ja-JP
279:639-5
124:, or
3805:2022
3798:6067
3758:2022
3751:6497
3690:2015
3527:2015
3502:2015
3477:2015
3452:7231
3414:2015
3197:IANA
3190:IETF
3154:and
3129:for
3105:and
3097:and
3036:Latg
3034:and
3032:Latf
3026:and
3020:Hant
3018:and
3016:Hans
2919:for
2907:for
2903:and
2891:for
2797:Zulu
2670:Urdu
2632:tzm
2536:Thai
2479:syc
2369:sms
2352:smn
2335:smj
2318:sma
2233:sah
2228:саха
2114:quc
2074:پښتو
2061:prs
2048:Dari
2002:pap
1974:Odia
1798:moh
1599:kok
1394:ꆈꌠꁱꂷ
1377:Igbo
1371:Igbo
1314:hsb
1297:hrv
1187:gsw
1153:gil
1053:fil
900:dsb
798:ckb
603:ary
590:arn
549:አማርኛ
482:Zyyy
478:Zxxx
470:Zmth
462:Zsye
277:and
239:.
235:and
229:HTML
225:HTTP
216:for
200:for
184:for
172:for
164:for
156:for
140:and
3795:RFC
3785:doi
3748:RFC
3738:doi
3449:RFC
3439:doi
3193:RFC
3127:arq
3063:005
2954:afa
2946:bih
2913:ase
2897:hak
2885:nan
2873:cmn
2869:sgn
2823:or
2821:ISO
2808:zu
2791:zh
2774:yo
2757:xh
2740:wo
2723:vi
2706:uz
2683:ur
2664:uk
2651:ug
2615:tt
2598:tr
2581:tn
2564:tk
2547:th
2542:ไทย
2530:tg
2513:te
2496:ta
2460:sw
2443:sv
2426:st
2409:sr
2386:sq
2301:sl
2284:sk
2267:si
2250:se
2216:sa
2199:rw
2182:ru
2165:ro
2148:rm
2131:qu
2097:pt
2080:ps
2055:درى
2042:pl
2025:pa
1985:or
1968:oc
1951:no
1934:nn
1917:nl
1900:ne
1883:nb
1866:my
1849:mt
1832:ms
1815:mr
1781:mn
1758:ml
1741:mk
1724:mi
1707:lv
1690:lt
1673:lo
1668:ລາວ
1662:Lao
1656:lb
1639:ky
1622:ku
1582:ko
1577:한국어
1565:kn
1548:km
1531:kl
1514:kk
1497:ka
1480:ja
1475:日本語
1463:iu
1457:ᑲᓇᑕ
1433:it
1416:is
1399:ii
1382:ig
1365:id
1348:hy
1331:hu
1274:hr
1257:hi
1240:he
1221:ha
1204:gu
1170:gl
1138:gd
1121:ga
1104:fy
1087:fr
1070:fo
1036:fi
1019:fa
1000:eu
983:et
966:es
949:en
936:el
919:dv
883:de
866:da
849:cy
832:cs
815:co
779:ca
762:bs
739:br
722:bo
705:bn
688:bg
671:be
654:ba
637:az
620:as
573:ar
554:am
537:af
472:to
237:PNG
233:XML
97:An
61:or
3879::
3793:.
3779:.
3775:.
3746:.
3732:.
3728:.
3681:.
3591:.
3518:.
3493:.
3468:.
3447:.
3431:.
3405:.
3381:.
3377:.
3353:.
3349:.
3321:^
3288:.
3222:.
3133:.
3109:.
2990:yi
2942:bh
2923:.
2835:,
2831:,
2825:UN
2786:中文
2017:/
1388:Yi
476:,
468:,
458:Z.
451:ES
447:ca
420:ja
412:es
343:);
298:i-
294:x-
231:,
227:,
220:.
196:;
168:;
160:;
152:;
146:en
136:,
132:,
117:.
3865:"
3858:"
3807:.
3787::
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