Names, codes and lookups

A range of products that provide definitive names, codes and lookups for various geographies.

  • Code History Database (CHD)

    The CHD provides details of codes, relationships, hierarchies and archived data.

  • Lookups

    Listings of current lookups for a wide range of geographies in the UK.

  • Names and codes listings

    Current names and codes for a wide range of geographies in the UK, including administrative, electoral, health, international and statistical geographies.

We provide a range of products to define names and codes, and the relationships between geographies. You can find the Government Statistical Service (GSS) Coding and Naming Policy, implemented on 1 January 2011, under ‘Related Links’.

You can download all these products free of charge from the Open Geography portal.

Related links