Data Files
12/04/2025
PTR2 Event Scripting Changes (Excel Document)
Data Files
12/04/2025
USPS Ship Data Dictionary

Detailed information on the USPS Ship (Formerly Package Platform) data elements available through the Informed Visibility Mail Tracking & Reporting (IV-MTR) application.

Data Files
12/04/2025
Z4 Info File

A downloadable ZIP file containing information related to the Z4 Info File

Data Files
12/04/2025
Early Warning System (EWS002C0.ZIP)

This file is the EWS production file and is updated weekly. This file contains the Early Warning System data file for the CASS™ and MASS™ certification process.

 

Data Files
12/03/2025
PTR2 Event Scripting Changes
Data Files
12/03/2025
NCOALink® Statistics

This spreadsheet includes NCOALink statistics from 2007-2025 by licensee type.

Data Files
12/01/2025
November 2025 Nixie Volume

This spreadsheet contains the UAA statistics for November 2025.

Data Files
12/01/2025
ZIP Codes by Area and District codes

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

Data Files
12/01/2025
***Updated - New Areas*** - Area District 5-digit ZIP Codes (AREADIST_ZIP5.TXT)
Data Files
12/01/2025
City/State ZIP Code Weekly Compare