Carrier Route Product

The Carrier Route Product provides reference information needed to apply carrier route codes to addresses for presort postage discounts.

Who is the Carrier Route Product for?

First Class Mail

First Class Mail





Standard Mail

Standard Mail


What is Carrier Route Product?

Carrier Route Product provides mailers with reference information for applying carrier route codes to addresses when taking advantage of presort postage discounts. Mail containing carrier route codes can then be presorted to the carrier route level.

Carrier Route Product is available with monthly updates. This product contains raw data and does not contain any software. The hardcopy report offered in the past has been replaced with the AIS Viewer ZIP + 4® Retrieval option. Using the ZIP + 4 Retrieval option, mailers can retrieve, view, and print hardcopy reports on demand similar to the Carrier Route Information System (CRIS) hardcopy reports. Mailers are encouraged to update their files when they receive updates from the Postal Service™ or vendors, and carrier-presort mailers must comply with the established mandatory update cycles specified by the Postal Service in the Domestic Mail Manual (DMM®).

A sample Carrier Route file is available for download here.

Featured Resources

Fact Sheets
Address Information System (AIS) Products Pricing

Pricing guide for Address Information System (AIS) products, including Carrier Route, ZIP + 4®, Five-Digit ZIP®, City State, Delivery Statistics, Z4Change, ZIPMove, eLOT®, and RDI™.

Tech Guides
Address Information System (AIS) Products Technical Guide

The Address Information System (AIS) Products Technical Guide contains documentation on all AIS products, including RDI™, Z4Change, ZIPMove, ZIP + 4®, Five-Digit ZIP®, eLOT®, Carrier Route, City State, and Delivery Statistics.

Data Files
Sample Carrier Route File

This document provides a sample of a Carrier Route .txt file.

Applications/ Forms
Electronic Product Fulfillment (EPF) Web Access Request Form

This form is used to create a Web-based account with the Addressing and Geospatial Technology (AGT) office which will be utilized to retrieve/download files from the Electronic Product Fulfillment (EPF) website.

Applications/ Forms
Address Information Systems (AIS) Products Order Form

Order form for Address Information System (AIS) products.

Applications/ Forms

Related Products

Address Information System (AIS) Viewer

AIS Viewer is an interactive application designed to provide the ability to retrieve, view, and print accurate and current ZIP Code™ information for all 50 states.

City State Product

The City State Product is a comprehensive list of city, county, and Post Office names associated with each ZIP Code™.

Delivery Statistics Product

The Delivery Statistics Product defines the number of post office boxes and business/residential deliveries on city, rural, and highway contract routes for every ZIP Code™ in the United States.

Five-Digit ZIP® Product

The Five-Digit ZIP® Product provides five-digit ZIP Code™ data that can be appended to computerized mailing lists via address-matching software.

Enhanced Line of Travel (eLOT®)

The eLOT product allows mailers the ability to sort their mailings in approximate carrier-casing sequence.

Z4CHANGE Product

Z4CHANGE Product provides mailers the information necessary to create an application that would facilitate frequent and cost-effective processing for updating very large computerized mailing lists for automation compatibility and improved deliverability.

ZIP + 4® Product

The ZIP + 4® Product is a base reference file that can be accessed by an application to assign the correct ZIP + 4® Code associated with a physical address.

ZIPMove Product

ZIPMove Product offers a means of correcting addresses that have undergone a ZIP Code™ realignment in which a change in city name and finance number occurred.


For more information about the Carrier Route Product, please contact the Addressing and Geospatial Technology office at 800-238-3150, or at