A postal code (known in various countries as a post code, postcode, or ZIP code) is a series of letters and/or digits appended to a postal address for the purpose of sorting mail. Once postal codes were introduced, other applications became possible.

Postal code seach:

• Postiindeksid otsingule 'Lehe 68, Tallinn':

  HARJUMAA	TALLINN		LEHE 13	13417
  HARJUMAA	TALLINN		LEHE 40	13417
  HARJUMAA	TALLINN		LEHE 1	13426
  HARJUMAA	TALLINN		LEHE 2	13426