Announcements
09/28/2026
INFORMATIONAL - October 12, 2026, Columbus Day Holiday Recommendations on Live Animal Shipping
Publications
09/28/2026
Labeling List Changes Effective November 1, 2026

Effective November 1, 2026, the Postal Service™ will revise Labeling List(s) L001, L007, L012, L201, and L606 to reflect changes in mail processing operations. Mailers are expected to label according to these revised lists for mailings inducted on or after the November 1, 2026, effective date through December 31, 2026, expiration date. The changes will be published in the Postal Bulletin, Issue #22713.

Data Files
09/28/2026
***Updated - New Areas*** - Area District 5-digit ZIP Codes (AREADIST_ZIP5.TXT)
Data Files
09/28/2026
City/State ZIP Code Weekly Compare
Data Files
09/28/2026
3 Digit ZIP/AISU Office List (AISUREPT.TXT)
Data Files
09/28/2026
AIS Congressional District File (CONG_DIST.TXT)
Data Files
09/28/2026
AIS County Name Table Layout (AISCNTY.TXT)
Data Files
09/28/2026
AMS County Name Table (COUNTY_NAME_TABLE.TXT)
Contact Lists
09/28/2026
AMS Address Report: AISU Mailing List (ADDRREPT.TXT)
Data Files
09/28/2026
AISU ZIP Code Record and AISU Address Record Descriptions (AISULOUT.TXT)