Announcements
11/04/2025
DELIVERY - Atlantic Area CT District Moosup Post Office 06354 Resumes Operations
Announcements
11/04/2025
INFORMATIONAL - USPS APIs System Maintenance November 4, 2025
Announcements
11/04/2025
INFORMATIONAL - Mail Growth Incentive 2024 Postage Credits Expire
Release Notes
11/04/2025
USPS APIs Release Notes

For the latest updates, please review the USPS APIs Release Notes.

Announcements
11/03/2025
INFORMATIONAL - Web Tools API Migration
Data Files
11/03/2025
October 2025 Nixie Volume

This spreadsheet contains the UAA statistics for October 2025.

Announcements
11/03/2025
INFORMATIONAL - Envelope Change from Tyvek to Poly
Data Files
11/03/2025
ZIP Codes by Area and District codes

The Excel spreadsheet lists ZIP Codes with the associated Area and District Codes.  

Data Files
11/03/2025
***Updated - New Areas*** - Area District 5-digit ZIP Codes (AREADIST_ZIP5.TXT)
Data Files
11/03/2025
City/State ZIP Code Weekly Compare