A lookup file between 2019 Local Authority Districts to 2020 Covid Infection Survey Geography in the United Kingdom, as at 1 October 2020. (File size - 48KB) Field Names - LAD19CD, LAD19NM, CIS20CD, FIDField Types - Text, Text, Text, NumericField Lengths - 9, 35, 9FID = 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/LAD19_CIS20_EN_LU_f408cfe25ebb4ac59e733aeb2fcb28a5/FeatureServer