Why are DPID’s and bar-coding important?
Australia Post has a non personalised database of 8.8 million addresses in Australia. It is called the postal address file or PAF. Each PAF address has been assigned a random unique eight digit number called a “Delivery Point Identifier” – DPID. The DPID is converted to a barcode which is applied above the mailing address on the mailing piece. This allows the mail to be electronically processed and sorted down to the postman’s delivery route.