ID 1, Approximate postcode area (APA), United Kingdom
ID 131, Approximate postcode district (APD), United Kingdom
ID 3000, Approximate postcode sector (APS), United Kingdom
ID 19998, Approximate postcode unit (APU), United Kingdom
ID 20001, Approximate postcode unit (APU), United Kingdom
ID 20002, Approximate postcode unit (APU), United Kingdom
ID 20005, Approximate postcode unit (APU), United Kingdom
ID 20006, Approximate postcode unit (APU), United Kingdom
ID 20008, Approximate postcode unit (APU), United Kingdom
ID 20010, Approximate postcode unit (APU), United Kingdom
ID 20030, Approximate postcode unit (APU), United Kingdom