Language Code - Common Schemes

Common Schemes

Some common language code schemes include:

Scheme Notes Examples
Codes for English Codes for Spanish
ISO 639 The original ISO standard from 1967 to 2002. Now obsolete, it was replaced by ISO 639‑1, ISO 639‑2, and ISO 639‑3. Sometimes used as a shorthand for the union of all 639 standard codes.
  • eng – three-letter code
  • enm – Middle English, c. 1100–1500
  • ang – Old English, c. 450–1100
  • cpe – other English-based creoles and pidgins
  • EN – English or American two-letter capital code

(source: Library of Congress)
  • esl – three-letter code
  • spa – alternative three-letter code
  • ES – Spanish two-letter capital code
ISO 639‑1 Two-letter code system made official in 2002, containing 136 codes. Many systems use two-letter ISO 639‑1 codes supplemented by three-letter ISO 639‑2 codes when no two-letter code is applicable.
  • en

(from List of ISO 639‑1 codes)
  • es – Spanish
ISO 639‑2 Three-letter system of 464 codes.
  • eng – three-letter code
  • enm – Middle English, c. 1100–1500
  • ang – Old English, c. 450–1100
  • cpe – other English-based creoles and pidgins

(from List of ISO 639‑2 codes)
  • spa – Spanish
ISO 639‑3 An extension of ISO 639‑2 to cover all known, living or dead, spoken or written languages in 7,589 entries.
  • eng – three-letter code
  • enm – Middle English, c. 1100–1500
  • aig – Antigua and Barbuda Creole English
  • ang – Old English, c. 450–1100
  • svc – Vincentian Creole English
  • others

(from List of ISO 639‑3 codes)
  • spa – Spanish
  • spq – Spanish, Loreto-Ucayali
  • ssp – Spanish sign language
  • others
Old SIL codes Codes created for use in the Ethnologue, a publication of SIL International that lists language statistics. The publication now uses ISO 639‑3 codes. SPN
IETF language tag An IETF best practice, currently specified by RFC 5646 and RFC 4647, for language tags easy to parse by computer. The tag system is extensible to region, dialect, and private designations.
  • en – English, as shortest ISO 639 code.
  • en-US – English as used in the United States (US is the ISO 3166‑1 country code for the United States)
  • en-US-x-fandom – English with private subtag

(source: IETF memo)
  • es – Spanish, as shortest ISO 639 code.
  • es-419 – Spanish appropriate for the Latin America and Caribbean region, using the UN region code
LS‑2010 Two-digit + one to six letter Linguasphere code system published in 2000, updated 2010, containing over 32,000 codes.

(within hierarchy of Linguasphere-2010 codes, as follows:)

  • 5= Indo-European phylosector
  • 52= Germanic phylozone
  • 52-A Germanic set
  • 52-AB English + Anglo-Creole chain
  • 52-ABA English
    net
  • 52-ABA-c
    Global English
    outer unit
    > 52-ABA-ca to
    52-ABA-cwe
    (186 varieties)

compare: 52-ABA-a Scots + Northumbrian
outer unit &
52-ABA-b "Anglo-English" outer unit
(= South Great Britain traditional varieties + Old Anglo-Irish)

(within hierarchy of Linguasphere-2010 codes, as follows:)

  • 5= Indo-European phylosector
  • 51= Romanic phylozone
  • 51-A Romance set
  • 51-AA Romance chain
  • 51-AAA West Romance net
  • 51-AAA-b Español/Castellano
    outer unit
    > 51-AAA-ba to
    51-AAA-bkk
    (58 varieties)

compare: 51-AAA-a Português + Galego outer unit &
51-AAA-c Astur + Leonés outer unit, etc.
Verbix Language Codes Constructed codes starting with old SIL codes and adding more information.

Read more about this topic:  Language Code

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