All Fields Postcode Directory provides a look up table of postcodes in Scotland, England and Wales. The directory links them to a wide range of geographical units and other indicators, totalling some 34 fields.
Fields cover administrative, electoral and census units.
In addition, supplementary information based on the 1991 Census, and a full UK National Grid reference is provided. The dataset is made up of a file of all the postcodes in the UK, along with the corresponding geographical unit fields and a National Grid Reference. Each entry also contains the date when the postcode was introduced or terminated. Census zones are included for England and Wales, but not as yet for Scotland. Where the area of interest is limited to Scotland, the Scottish Current Postcode Index provides a comprehensive set of geographic areas within Scotland.