Announcements
05/19/2026
INFORMATIONAL - Mailer Scorecard - Temporarily Unavailable
Announcements
05/19/2026
INFORMATIONAL - Updated - 2026 Labeling List and Mail Direction File (MDF) Timeline
Release Notes
05/18/2026
May 31 2026 EPS/eBill R8.4.0.0 Release Notes
Fact Sheets
05/18/2026
IMpb (Intelligent Mail® Package Barcode & IMmb (Intelligent Mail® Matrix Barcode) Verification Fact Sheet
Announcements
05/18/2026
DELIVERY - International Service Resumption Notice – Effective May 19, 2026
Announcements
05/18/2026
INFORMATIONAL - USPS APIs System Release - Rescheduled May 28, 2026
Announcements
05/18/2026
INFORMATIONAL - USPS APIs System Release May 26, 2026
Data Files
05/18/2026
***Updated - New Areas*** - Area District 5-digit ZIP Codes (AREADIST_ZIP5.TXT)
Data Files
05/18/2026
City/State ZIP Code Weekly Compare
Data Files
05/18/2026
3 Digit ZIP/AISU Office List (AISUREPT.TXT)