All geographical features in GeoNames are categorized into one out of nine feature classes and further subcategorized into one out of 645 feature codes.

Prefix
geonames.feature
License
CC-BY-4.0
Links
Homepage
Contact
Missing Contact
Pattern for Local Unique Identifiers
Missing LUI pattern
Example Local Unique Identifier
ADM1   Resolve
Example CURIE
geonames.feature:ADM1
Contributors
Providers

A provider turns a local unique identifiers from a resource into a URI. Many providers are also resolvable as URLs (i.e., they can be used in a web browser).

The local unique identifier ADM1 is used to demonstrate the providers available for GeoNames Feature Code. Some providers may use a different example, which is displayed in the table below. A guide for curating additional providers can be found here.

Name Metaprefix URI
GeoNames Feature Code geonames.feature https://www.geonames.org/recent-changes/featurecode/ADM1/
Bioregistry bioregistry https://bioregistry.io/geonames.feature:ADM1