ID 1, Approximate postcode area (APA), United Kingdom
ID 134, Approximate postcode district (APD), United Kingdom
ID 3006, Approximate postcode sector (APS), United Kingdom
ID 21000, Approximate postcode unit (APU), United Kingdom
ID 21003, Approximate postcode unit (APU), United Kingdom
ID 21004, Approximate postcode unit (APU), United Kingdom
ID 21006, Approximate postcode unit (APU), United Kingdom
ID 21033, Approximate postcode unit (APU), United Kingdom
ID 21039, Approximate postcode unit (APU), United Kingdom