Data Files
07/06/2026
AISU ZIP Code Record and AISU Address Record Descriptions (AISULOUT.TXT)
Data Files
07/06/2026
AISU ZIP Code File (AISUZIPS.TXT)
Data Files
07/06/2026
AISU Contact Information (AISUADDR.TXT)
Data Files
07/06/2026
Area District Finance File Specification (AREA_DIST_LAYOUT.TXT)
Data Files
07/06/2026
Area District Finance File (AREADIST.TXT)
Data Files
07/06/2026
Area/District 3-digit and 5-digit ZIP Code Assignments (AREA_DIST_ZIP.TXT)
Data Files
07/06/2026
Move to Competitive Street Addressing (MTC SA) List

This .txt file contains the MTC SA List.

Announcements
07/02/2026
INFORMATIONAL: USPS APIs System Deployment - July 11, 2026
Announcements
07/02/2026
INFORMATIONAL: USPS APIs System Deployment - July 19, 2026
Announcements
07/02/2026
DELIVERY: WestPac Area: CO-WY District - Temporarily Closed - Wetmore Post Office (81253)