Data Files
06/30/2025
Area/District 3-digit and 5-digit ZIP Code Assignments (AREA_DIST_ZIP.TXT)
Data Files
06/30/2025
Move to Competitive Street Addressing (MTC SA) List

This .txt file contains the MTC SA List.

Announcements
06/29/2025
INFORMATIONAL: Scheduled Commercial Systems Activities - Price Change Release - Successfully Completed
Release Notes
06/29/2025
July 2025 Release Notes
Announcements
06/28/2025
INFORMATIONAL: USPS APIs System Maintenance - June 30, 2025
Announcements
06/28/2025
DELIVERY: Atlantic Area - Maryland District - Oxford Post Office (21654) - Temporarily Closed
Announcements
06/27/2025
DELIVERY - Central Area – Ohio 1 District - Rogers Post Office - 44455
Announcements
06/27/2025
INFORMATIONAL - The MSSC Announces EVS Email Addresses Decommissioned
Publications
06/27/2025
Labeling List Changes Effective August 1, 2025

Effective August 1, 2025, the Postal Service™ will revise Labeling List(s) L002, L004, L005, L007, L010, L012, L601, L605, and L606 to reflect changes in mail processing operations.

Release Notes
06/27/2025
USPS APIs Release Notes

For the latest updates, please review the USPS APIs Release Notes.