Earth:Hierarchical administrative subdivision codes

Hierarchical administrative subdivision codes (HASC) are codes to represent names of country subdivisions, such as states, province, regions. They are described in the book Administrative Subdivisions of Countries: A Comprehensive World Reference, 1900 Through 1998, written by Gwillim Law († August 31, 2016).

The codes are alphabetic and have constant length for the first level subdivisions. Examples:

DE - Germany 
DE.NW - North Rhine-Westphalia
DE.NW.CE - Kreis Coesfeld

See also

• ISO 3166-2
• Geocode