Data Files
08/31/2026
***Updated - New Areas*** - Area District 5-digit ZIP Codes (AREADIST_ZIP5.TXT)
Data Files
08/31/2026
City/State ZIP Code Weekly Compare
Contact Lists
08/31/2026
Mail Service Provider (MSP) - Full-Service Certified Mailers

A Mail Service Provider (MSP) offers a variety of solutions to prepare and present Full-Service presort mailings. For more information regarding Certified MSPs, please follow this link: https://postalpro.usps.com/full-service-cert/fact-sheet

 

Data Files
08/31/2026
3 Digit ZIP/AISU Office List (AISUREPT.TXT)
Data Files
08/31/2026
AIS Congressional District File (CONG_DIST.TXT)
Data Files
08/31/2026
AIS County Name Table Layout (AISCNTY.TXT)
Data Files
08/31/2026
AMS County Name Table (COUNTY_NAME_TABLE.TXT)
Data Files
08/31/2026
AMS Address Report: AISU Mailing List (ADDRREPT.TXT)
Data Files
08/31/2026
AISU ZIP Code Record and AISU Address Record Descriptions (AISULOUT.TXT)
Data Files
08/31/2026
AISU ZIP Code File (AISUZIPS.TXT)
Data Files
08/31/2026
AISU Contact Information (AISUADDR.TXT)
Data Files
08/31/2026
Area District Finance File Specification (AREA_DIST_LAYOUT.TXT)
Data Files
08/31/2026
Area District Finance File (AREADIST.TXT)
Data Files
08/31/2026
Area/District 3-digit and 5-digit ZIP Code Assignments (AREA_DIST_ZIP.TXT)
Data Files
08/31/2026
Move to Competitive Street Addressing (MTC SA) List

This .txt file contains the MTC SA List.

Announcements
08/29/2026
INFORMATIONAL - Drop Shipment Appointments at San Antonio Annex 780MP
Release Notes
08/28/2026
October 2026 - Timelimited Price Change Release
Presentations
08/27/2026
PCCAC Certification Webinar: Postal Shipping Products Deep Dive with Catherine Knox
Announcements
08/27/2026
DELIVERY - Big Sur Post Office (03920) - Temporarily Closed
Release Notes
08/27/2026
PTR2 Release Notes_DD_08_27_26
Announcements
08/26/2026
DELIVERY: WestPac Area – NV-UT District - Sierra Post Office (89506) – Resume Operations
Release Notes
08/26/2026
August 27, 2026 COP Release Notes
Announcements
08/25/2026
DELIVERY: WestPac Area – CO-WY District - Hasty Post Office (81044) – Resume Operations
Announcements
08/25/2026
INFORMATIONAL: USPS Scan Event Extract Modernization Updates
Presentations
08/25/2026
PCCAC: News You Need to Know from MTAC - July 2026