Language codes (IANA language subtag registry)
Every language subtag in the IANA registry used to build BCP 47 language tags (en, fr, zh, yue, …), with its name, scope, macrolanguage, default script, date added and deprecation. One row per language code.
Columns
Stable keys — use them in the API, SQL and code
| Key | Name | Type | Description |
|---|---|---|---|
| subtag | Code | string | Language subtag, e.g. en or yue. |
| name | Language | string | First description in the registry. |
| other_names | Other names | string | — |
| code_length | Letters | integer | 2 for ISO 639-1 codes, 3 for ISO 639-2/3/5 codes. |
| scope | Scope | string | macrolanguage, collection, special or private-use; blank for an individual language. |
| macrolanguage | Macrolanguage | string | Code of the macrolanguage it belongs to, e.g. zh for yue (Cantonese). |
| default_script | Default script | string | ISO 15924 script code IANA says to omit from tags (Suppress-Script). |
| added | Added | date | Date the code was added to the registry. |
| deprecated | Deprecated | date | Date the code was deprecated, if it was. |
| preferred_value | Use instead | string | Replacement code for a deprecated subtag. |
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