How to search for a postal carrier route number by street address
The USPS ZIP Code Lookup tool allows you to enter any U.S. residential mailing address and find the postal carrier route number you need for targeting specific street areas with your Saturation Mailing.
To find the postal carrier route number you need, click the link below, enter the street address and ZIP code into the form, and select "Find". When the results are displayed, select "Show Mailing Industry Details" below the address. The carrier route number will be the first item listed.