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.  

Announcements
10/31/2025
DELIVERY – Atlantic Area – New Jersey – Milford, NJ Post Office 08848 - Office Temporarily Closed
Announcements
10/31/2025
INFORMATIONAL - Delay of USPS Ship Release 22.0.0.0
Announcements
10/31/2025
INFORMATIONAL - Commercial System Releases – November 6, 2025
Announcements
10/31/2025
INFORMATIONAL - Postal Service November 2025 SDC Activations
Announcements
10/31/2025
INFORMATIONAL - St. Louis PSA Activation on November 1, 2025
Publications
10/31/2025
PCC Insider October 2025 Edition
Announcements
10/31/2025
November 2025 PCC Events Calendar In-Person, Virtual, or Hybrid PCC Events
Announcements
10/31/2025
INFORMATIONAL: Mail Spoken Here - October Edition
Technical Specifications
10/31/2025
Mail.xml Technical Specifications R63.0.0.0