ID 1, Approximate postcode area (APA), United Kingdom
ID 128, Approximate postcode district (APD), United Kingdom
ID 2988, Approximate postcode sector (APS), United Kingdom
ID 18000, Approximate postcode unit (APU), United Kingdom
ID 18002, Approximate postcode unit (APU), United Kingdom
ID 18004, Approximate postcode unit (APU), United Kingdom
ID 18131, Approximate postcode unit (APU), United Kingdom
ID 18135, Approximate postcode unit (APU), United Kingdom