Announcements
02/10/2026
DELIVERY - Thornton Post Office (76687) - Temporarily Suspended
Announcements
02/10/2026
DELIVERY - Tropical Reef Post Office (33060) - Permanent Move
Data Files
02/09/2026
Cumulative Listing of ZIP Codes Covered by the LACS Database

This document provides a cumulative listing of ZIP Codes covered by the LACS database for LACSLink®.

Announcements
02/06/2026
INFORMATIONAL - USPS APIs System Deployment February 7, 2026
Announcements
02/06/2026
INFORMATIONAL - Commercial System Releases - February 25 2026
Announcements
02/06/2026
INFORMATIONAL - MAILER ID (MID) Validation for Payments POSTPONED
Announcements
02/06/2026
Deadline Extension 2026 NPF Ticket Contest
Release Notes
02/06/2026
Informed Delivery API Release Notes V1.2
Data Files
02/06/2026
Informed Visibility Mail Tracking & Reporting Machine Count

List of US Postal Service machines by site, including a description of each machine.

Data Files
02/06/2026
Informed Visibility® Mail Tracking & Reporting (IV®-MTR) Development Tracker

This document provides a list of active IV-MTR work to be as well as items completed in FY25.

 

*Please note, Postal Pro is the only source for a current IV-MTR Development log as updates will be made on an ongoing basis.