Data Files
04/24/2026
Informed Visibility® Mail Tracking & Reporting (IV®-MTR) Operation Codes List

This spreadsheet provides a list of operation codes (opcodes), also known as Scan Event Codes, for the IV-MTR application.

Announcements
04/23/2026
INFORMATIONAL - Postal Service Updates for July 2026 S&DC Activations
Announcements
04/22/2026
INFORMATIONAL - Postal Service Updates for May and June 2026 - SDC Activations
Announcements
04/22/2026
DELIVERY - Diplomatic Post Office (09291) to resume Mailing Services
Announcements
04/21/2026
INFORMATIONAL - July 2026 Market Dominant Price Change Filing Webinar Posted to PostalPro
Presentations
04/21/2026
July 2026 Market Dominant Price Change Filing Webinar

Overview of July 2026 Market Dominant Price Change.

 

If you missed the session—or would like to revisit this informative presentation—you can access both the presentation slides and the full webinar recording at the link below:

 

To view Webinar click here:

Passcode: WQ!!7t=8

Announcements
04/20/2026
INFORMATIONAL - USPS APIs System Notification April 23, 2026
Announcements
04/20/2026
INFORMATIONAL - Last Chance - Register Today for the 2026 National Postal Forum
Announcements
04/20/2026
INFORMATIONAL - Expansion of Daily Webinar Series – API Package Tracking Access Control, Address & NCOA APIs through July 24, 2026
Announcements
04/17/2026
INFORMATIONAL: PostalOne! – [INCIDENT # 10576848] Error for Mail Entry Invoice Transaction Requests