This element of a postal address typically represents the primary location identifier. It commonly contains the street number and name of the building or property. For example, in “123 Main Street, Anytown,” “123 Main Street” fulfills this function. It distinguishes a specific residence or business from others on the same street.
Accurate completion of this field is crucial for efficient mail delivery and package routing. Its importance lies in ensuring items reach their intended recipient without delays or misdirection. Historically, the need for such precise identifiers arose with increasing urbanization and the proliferation of addresses within a single locality, necessitating a clear and unambiguous means of differentiation.