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The tracking number may come from the USPS, UPS, or another carrier; how scammers access the numbers is unclear, but that's a problem for the carriers to address.
It is a unique ID number or code assigned to a package or parcel. The tracking number is typically printed on the shipping label as a bar code that can be scanned by anyone with a bar code reader or smartphone. In the United States, some of the carriers using tracking numbers include UPS, [1] FedEx, [2] and the United States Postal Service. [3]
The service became quickly popular: for UPS the number of packages tracked on the web increased from 600 a day in 1995 [9] to 3.3 million a day in 1999. [10] On-line package tracking became available for all major carrier companies, and was improved by the emergence of websites that offered consolidated tracking for different mail carriers. [11]
The Postal Alpha Numeric Encoding Technique (PLANET) barcode was used by the United States Postal Service to identify and track pieces of mail during delivery – the Post Office's "CONFIRM" services.
When combined with the ZIP + 4 code, the delivery point provides a unique identifier for every deliverable address served by the USPS. [ 1 ] The delivery point digits are almost never printed on mail in human-readable form; instead they are encoded in the POSTNET delivery point barcode (DPBC) or as part of the newer Intelligent Mail Barcode (IMb).
A possible Intelligent Mail Barcode for the Wikimedia Foundation address. The Intelligent Mail Barcode (IMb) is a 65-bar barcode for use on mail in the United States. [1] The term "Intelligent Mail" refers to services offered by the United States Postal Service for domestic mail delivery.
The full eagle logo, used in various versions from 1970 to 1993. The United States Postal Service (USPS), also known as the Post Office, U.S. Mail, or simply the Postal Service, is an independent agency of the executive branch of the United States federal government responsible for providing postal service in the United States, its insular areas and associated states.
Each item is assigned a unique label number which serves as an official record of mailing by the USPS. Certified mail began in 1955 after the idea was originated by Assistant U.S. Postmaster General Joseph Cooper. [20] Certified mail may be selected for many reasons, not just for important business mailings.