Nh?ng ???ng d?n này do ??i th??ho?c m?t s??ng??i x?u t?o ra v?i m?c ?ích l?i d?ng tên tu?i c?a trang Net ???l?a ??o, ?ánh c?p thông tin và chi?m ?o?t tài s?n.The USPS made ZIP Codes for the expedient shipping and delivery of mail. Their boundaries are based upon mail routes and shipping and delivery details rather than geographic components