Contact Lists
12/19/2025
Mail Tracking Vendor List

This document provides contact information for a number of third-party service providers who offer mail owner and mail service provider solutions.

Announcements
12/18/2025
DELIVERY - Winter Weather Update December 18
  • 12/18/2025

    Addressing Fact Sheet for First-Class Flats

    This document is for mailers who are sending flat-size mail (such as large envelopes) at Automation and Presorted First-Class Mail prices. To use these prices, you must mail at least 500 pieces at a time, prepared and sorted according to Postal Service guidelines. 

    • Announcements
    12/18/2025
    INFORMATIONAL - USPS Ship Payment Transaction Type Update for Monthly Assessments
    Announcements
    12/18/2025
    INFORMATIONAL - Reminder - Christmas and New Year's Holiday Recommendations on Live Animal Shipping
    Announcements
    12/18/2025
    DELIVERY - UPDATE - WestPac Area - Washington District - Hamilton Post Office (98255) - Temporarily Closed
    Announcements
    12/17/2025
    DELIVERY - Hamilton Post Office (98255) - Temporarily Closed
    Announcements
    12/17/2025
    INFORMATIONAL - U.S. Postal Service Announces Bid Solicitation
    Announcements
    12/16/2025
    Opportunity to Feature NPF on Your Podcast
    Announcements
    12/16/2025
    PROCESSING AND DISTRIBUTION: Destinating Delays at South Suburban, IL - Processing and Distribution Center (P&DC)