A tracking number is all you need in order to track your USPS shipment. Your tracking number can be found on your US post office shipping receipt, your sales receipt if you bought insurance at a US post office, the bottom peel-off portion of your USPS tracking label, your email confirmati...
USPS Tracking Step by Step After accepting a package, the mail carrier places it on a truck for transport to a distribution center.Distribution centers are highly mechanized processing plants in which machines arrange packages in the same orientation, read addresses and sort according to destination....