Announcements
09/22/2026
DELIVERY - Atlantic Area – Maryland District - Hughesville Post Office (20637) - Temporarily Closed
Announcements
09/22/2026
INFORMATIONAL - Commercial System Releases September 24 & 29, 2026
Release Notes
09/22/2026
September 24, 2026 COP Release 2.5.6
Contact Lists
09/22/2026
Mailers Technical Advisory Committee (MTAC) Membership Roster and Vacancies
Announcements
09/21/2026
INFORMATIONAL - USPS APIs System Release Notification – September 24, 2026
Data Files
09/21/2026
2027 Labeling List and Mail Direction File Schedule

This is the Labeling Lists production schedule for 2027.

Announcements
09/21/2026
DELIVERY - PostalOne! System - Issue with Finalizing Parcel Mailings and Application of IMpb Noncompliance
Announcements
09/21/2026
DELIVERY - Postal Service Updates for September 2026 S&DC Activations
Announcements
09/21/2026
What is the Postal Customer Council Advisory Committee (PCCAC)?
Announcements
09/21/2026
PROCESSING AND DISTRIBUTION - – Indianapolis, IN Regional Processing and Distribution Center (RPDC) Delays
Announcements
09/21/2026
PROCESSING AND DISTRIBUTION - Amarillo, TX Regional Processing & Distribution Center Activate on September 28, 2026
Contact Lists
09/21/2026
MTAC UG-WG-TT Leadership Roster and Matrix
Data Files
09/21/2026
***Updated - New Areas*** - Area District 5-digit ZIP Codes (AREADIST_ZIP5.TXT)
Data Files
09/21/2026
City/State ZIP Code Weekly Compare
Data Files
09/21/2026
3 Digit ZIP/AISU Office List (AISUREPT.TXT)
Data Files
09/21/2026
AIS Congressional District File (CONG_DIST.TXT)
Data Files
09/21/2026
AIS County Name Table Layout (AISCNTY.TXT)
Data Files
09/21/2026
AMS County Name Table (COUNTY_NAME_TABLE.TXT)
Data Files
09/21/2026
AMS Address Report: AISU Mailing List (ADDRREPT.TXT)
Data Files
09/21/2026
AISU ZIP Code Record and AISU Address Record Descriptions (AISULOUT.TXT)
Data Files
09/21/2026
AISU ZIP Code File (AISUZIPS.TXT)
Data Files
09/21/2026
AISU Contact Information (AISUADDR.TXT)
Data Files
09/21/2026
Area District Finance File Specification (AREA_DIST_LAYOUT.TXT)
Data Files
09/21/2026
Area District Finance File (AREADIST.TXT)
Data Files
09/21/2026
Area/District 3-digit and 5-digit ZIP Code Assignments (AREA_DIST_ZIP.TXT)