Dataset - data.gov.uk

Countries (December 2016) Names and Codes in the United Kingdom

This file contains the names and codes for the countries of the United Kingdom as at 31 December 2016. (File Size - 1 KB)
- HTML
- Esri REST
- GeoJSON
- CSV
Countries (December 2017) Names and Codes in the United Kingdom

This file contains the names and codes for the countries of the United Kingdom as at 31st December 2017. (File size - 16 KB)Field Names - CTRY17CD, CTRY17NM, CTRY17NMWField...
- HTML
- Esri REST
- GeoJSON
- CSV

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