The most frequent USPS Tracking Number Format consists of 20 numbers (Like 9999 9999 9999 9999 9999) or a combination of 13 alphabetic and numeric characters, often beginning with 2 Two alphabetic characters, followed by 9 Nine digits, and ending with "US" (e.g., EA 999 999 999 US).
The UPS Tracking number consists of eighteen alphanumeric digits. It begins with "1Z" and concludes with a check digit. As an illustration, 1Z 999 AA1 01 2345 6784. Checkdigit indicates whether or not the UPS tracking number has a typo.
Tracking Numbers for UPS are formatted as follows:
Beginning with "1Z": 1Z9999999999999999999
Beginning with Number: 999999999
Beginning with "T": 9999999999
9 Number:- 999999999
UPS will additionally track the following tracking numbers, which have between seven and twenty characters:
Child Transport tracking numbers for Less-Than-Truckload (LTL) and Truckload (TL) deliveries
House Air Waybill: Utilized for air transport
House Bill of Lading: Document used for ocean transit
Number assigned for surface carriage of freight
UPS InfoNotice: A bar-coded notice with a 12-digit number that is given on the initial delivery in particular countries.
Notice from UPS regarding the initial delivery attempt in select countries.