OS Open Names aims to provide a location, a classification and, where appropriate, a relationship between named places. For roads only. Take the postcode district from the Code-Point nearest to the midpoint geometry created for the road. e.g. SO16. null:PostcodeDistrict The name of the City that the road or postcode lies within. Where the City has more than one name, the name is concatenated with a space and a forward slash names:NamedPlace au:AdministrativeUnit au:AdministrativeUnit au:AdministrativeUnit au:AdministrativeUnit null:Any null:Any