VERIFIED SOLUTION i

How to contact the USPS if an address is not validated/coded using CODE-1 Plus, Finalist or the USPS.com lookup tool

If an address is not found using CODE-1 Plus, Finalist, or using the "Find a ZIP CODE" lookup tool on the USPS.com website, contact the local Address Management office (AMS) for the ZIP Code in question.  You can find the local office by going to the RIBBS.USPS.GOV website, click on Locators/Lookups and then click on AMS Offices.  You will be prompted for a ZIP Code.  Here is an example of the results for ZIP 20706:

The Address Management System office that serves 20706 can be contacted at:

ADDRESS MANAGEMENT SYSTEMS
UNITED STATES POSTAL SERVICE
PO BOX 789
SILVER SPRING MD 20918-0789

Phone : (301) 754-1702
Fax : (301) 754-1707


You can also use this link to get directly to the ZIP Code prompt: https://ribbs.usps.gov/locators/find-ams.cfm
 

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UPDATED:  April 10, 2017