The service maps U.K. postcodes and specific location parameters, defining map polygons and current or past administrative areas for the locations. It accepts either complete or partial postcode values, SRID values for specific points, or area identifiers. Mapping parameters returned are based on data from the Ordinance Survey, the Royal Mail, and the Office for National Statistics.
API methods support submission of one or more postcodes, complete or partial, to be mapped. Methods also allow submission of one or more identifiers (SRID values or values from the British National Grid or Irish National Grid) for specific points or areas. Returned data provide map points or polygons, depending on the values input.