Publications
07/01/2025
Publications
07/01/2025
Data Files
07/01/2025
ZIP Codes by Area and District codes

The Excel spreadsheet lists ZIP Codes with the associated Area and District Codes.  

Contact Lists
07/01/2025
Mail Service Provider (MSP) - Full-Service Certified Mailers

A Mail Service Provider (MSP) offers a variety of solutions to prepare and present Full-Service presort mailings. For more information regarding Certified MSPs, please follow this link: https://postalpro.usps.com/full-service-cert/fact-sheet

 

Data Files
07/01/2025
Pending Route Adjustment File

This Excel sheet details route adjustments for May 2025 thru August 2025.

Release Notes
06/30/2025
Publications
06/30/2025
Release Notes
06/30/2025
PFSC Application Release Notes 6-30-2025

Release notes for PFSC application release on 6-30-2025