Data Files
08/03/2026
Area/District 3-digit and 5-digit ZIP Code Assignments (AREA_DIST_ZIP.TXT)
Data Files
08/03/2026
Move to Competitive Street Addressing (MTC SA) List

This .txt file contains the MTC SA List.

Announcements
08/01/2026
INFORMATIONAL - USPS APIs System Deployment - August 16, 2026
Announcements
08/01/2026
INFORMATIONAL - USPS APIs System Deployment [CR# TBD] - August 8, 2026
Announcements
08/01/2026
USPS APIs System Deployment - August 2, 2026
Announcements
07/31/2026
INFORMATIONAL - Mail Spoken Here - July Issue
Announcements
07/31/2026
INFORMATIONAL - Executive Retirement - Dale E. Kennedy and Executive Appointment - Drew A. Mitchum
Announcements
07/31/2026
INFORMATIONAL - USPS Modernization Through Package Equipment Upgrades in August 2026
Announcements
07/31/2026
DELIVERY- Inchelium Post Office (99138) - Temporarily Closed
Fact Sheets
07/31/2026
Commonly Asked Mailpiece Design Analyst (MDA) Customer Questions

Commonly asked questions and answers from MDA customers.