Please enter a Package Identification Code (PIC number) for USPS Tracking pieces, International Mail Customs number, or Priority Mail Express tracking number to lookup information on the package you received. The shipper information will only be displayed if authorized by the sender.
The PIC number is printed below the tracking barcode on the package label. For Priority Mail, Parcel Post, Media Mail, Library Mail, and Bound Printed Matter, the PIC number is either 20 or 22 digits long (for example, 01805123456789012345). For Priority Mail Express, the PIC number is 13 characters long (for example, EO123456789US).