This file is a lookup between electoral wards/divisions, Westminster parliamentary constituencies and local authority districts in the United Kingdom as at 31st December 2018. (File Size - 2 MB) Field Names - WD18CD, WD18NM, PCON18CD, PCON18NM, LAD18CD, LAD18NMField Types - Text, Text, Text, Text, Text, TextField Lengths - 9, 56, 9, 43, 9, 36REST URL of Feature Access Service – https://services1.arcgis.com/ESMARspQHYMw9BZ9/arcgis/rest/services/WD18_PCON18_LAD18_UK_LU_7ef6763ac67940d6baa737526ce231f6/FeatureServer