This file is a lookup between electoral ward/divisions, registration districts and local authority districts in England and Wales as at 31 December 2020.  (File Size - 2MB) Field Names - WD20CD, WD20NM, REGD20CD, REGD20NM, LAD20CD, LAD20NM, FIDField Types - Text, Text, Text, Text, Text, Text, Text, TextField Lengths - 9, 53, 9, 31, 9, 35NB: Electoral Change orders operative in May 2020 postponed until May 2021.FID = The FID, or Feature ID is created by the publication process when the names and codes / lookup products are published to the Open Geography portal. REST URL of Feature Access Service – https://services1.arcgis.com/ESMARspQHYMw9BZ9/arcgis/rest/services/WD20_REGD20_LAD20_EW_LU_00b38731679540b2acaf23355efc6214/FeatureServer