Dataset - data.gov.uk

NUTS Level 1 and LAU Level 1 (January 2012) Map in Great Britain

A PDF map that shows the Nomenclature of Territorial Units for Statistics, level 1, 2 and 3 and Local Administrative Units, level 1 areas in England and Wales as at January 2012...
- HTML
- Esri REST

You can also access this registry using the API (see API Docs).