#Usps tracking number length code#
#Usps tracking number length zip#

The Postal Service is promoting use of the Intelligent Mail barcode because it expands the ability to track individual mailpieces and provides customers with greater visibility into the mailstream. The Intelligent Mail barcode, formerly referred to as the 4-State Customer barcode, is a new Postal Service barcode used to sort and track letters and flats.

^ 'Intelligent Mail Services Latest News' (PDF).

^ a b 'Intelligent Mail Barcode 4-State Specification (Rev H)' (PDF).

The number of characters can be calculated from the binomial coefficient. The characters are interleaved throughout the symbol. Consequently, single-bit errors in a character can be detected (toggling one bit results in an invalid character). The Hamming distance between characters is at least 2. Each character has 2, 5, 8, or 11 of its 13 bits set to one. The 65 bars represent 130 bits (or 39.13 decimal digits), grouped as ten 13-bit characters.

Each bar contains the central 'tracker' portion, and may contain an ascender, descender, neither, or both (a 'full bar'). Our goal with domestic tracking numbers is to maintain uniqueness for at least 6 months. With a 9-digit MID, you can generate up to 100,000 unique tracking numbers (and this is the situation where we use the 15 for a source identifier).

#Usps tracking number length code#

The code is made up of four distinct symbols, which is why it was once referred to as the 4-State Customer Barcode. These MID’s are usually 9 digits in length. The Intelligent Mail barcode is a height-modulated barcode that encodes up to 31 decimal digits of mail-piece data into 65 vertical bars. The four types of symbols in an Intelligent Mail barcode. Use of the barcode provides increased overall efficiency, including improved deliverability, and new services. The barcode is applied by the sender the Postal Service required use of the Intelligent Mail barcode to qualify for automation prices beginning January 28, 2013.

#Usps tracking number length zip#

It effectively incorporates the routing ZIP Code and tracking information included in previously used postal barcode standards. The complete specification can be found in USPS Document USPS-B-3200. An Intelligent Mail barcode has also been referred to as a One Code Solution and a 4-State Customer Barcode, abbreviated 4CB, 4-CB or USPS4CB. The IM barcode is intended to provide greater information and functionality than its predecessors POSTNET and PLANET.

The term 'Intelligent Mail' refers to services offered by the United States Postal Service for domestic mail delivery. The Intelligent Mail Barcode ( IMb) is a 65-bar barcode for use on mail in the United States. Being able to access tracking and delivery data for up to 10 years is a significant advantage over the time allotted in the standard service. It will hold information and allow access to signature items for two years. *NOTE: Black and white (grayscale) images show the front of the outside of letter-sized envelopes and mailpieces that are processed through USPS ® automated equipment.A possible Intelligent Mail Barcode for the Wikimedia Foundation address Typically, USPS tracking allows customers to access delivery information for 120 days for non-signature items. USPS carriers will leave your packages in your mailbox or at your preferred delivery location if they are too large to fit in your mailbox. Informed Delivery for personal accounts includes USPS Electronic Signature Online ® (USPS eSOL ®), a feature that allows you to digitally sign for incoming packages that require a signature including Priority Mail Express ®, Signature Confirmation ™, and those insured for $500 or more. FedEx Ground and Express tracking numbers can be between 12 and 14 digits. When shown on your receipt after shipping a package the tracking number is usually close to the barcode. From the Informed Delivery ® dashboard, you can also sign up for text or email notifications, schedule delivery alerts, request Redelivery, enter USPS Delivery Instructions ®, and more. Tracking numbers consist of letters and numbers between 8 and 40 characters long sometimes with spaces or hyphens between groupings of characters. Now both business and personal accounts can preview images* of mail and manage incoming packages on one dashboard without entering tracking numbers.