Data Files
05/12/2025
AISU ZIP Code Record and AISU Address Record Descriptions (AISULOUT.TXT)
Data Files
05/12/2025
AISU ZIP Code File (AISUZIPS.TXT)
Data Files
05/12/2025
AISU Contact Information (AISUADDR.TXT)
Data Files
05/12/2025
Area District Finance File Specification (AREA_DIST_LAYOUT.TXT)
Data Files
05/12/2025
Area District Finance File (AREADIST.TXT)
Data Files
05/12/2025
Area/District 3-digit and 5-digit ZIP Code Assignments (AREA_DIST_ZIP.TXT)
Data Files
05/12/2025
Move to Competitive Street Addressing (MTC SA) List

This .txt file contains the MTC SA List.

Data Files
05/12/2025
Pending Route Adjustment File

This Excel sheet details route adjustments for May 2025 thru June 2025.

Data Files
05/09/2025
2025 ZIP Code™ Split Listing (ZIPSPLIT) (Effective 7/01/2025)
Announcements
05/09/2025
INFORMATIONAL: U.S. Postal Service Announces Retirement of Vice President of Corporate Affairs, Judy de Torok