Changes will be reflected in Address Information Systems subscription products
On July 1, a series of ZIP Code changes will go into effect across the country. By aligning delivery territory and adding new ZIP Codes to accommodate area growth, the Postal Service will improve service to customers in these areas.
As a result of these realignments, there will be three types of changes:
- A ZIP Code will be split into two while remaining in the same Post Office service area.
- New ZIP Codes will be created for PO Boxes.
- Delivery territory will be transferred from one Post Office to another, resulting in a redrawn ZIP Code boundary.
A list of these realignments was published in the May 10 Postal Bulletin, Issue 22206, Post Office Changes section. The list also can be found on the RIBBS website at http://ribbs/files/ZIPSPLIT.
The changes resulting from the realignments will be reflected in the Address Information Systems (AIS) subscription products (e.g., ZIP+4 File, Z4Change File, ZIP Move File) beginning this month.
Customers who have general questions about these changes or who need assistance ordering AIS products should call the