V4G 1N4.
O Canada... Tilbury Island is a small commercial island located in the suburbs of Vancouver, BC. In Canada, postal codes follow an alphanumeric format of A1A-1A1. When Tilbury Island's city council (presumably made up of 12-year-old boys) saw that format, they took it and ran with it. Their other postal code ideas of P0O-0P5 and F4T-4S5 were sadly rejected, however (not really).