Data Files
07/01/2026
ZIP Codes by Area and District codes

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

Data Files
07/01/2026
Informed Delivery® Post-Campaign (IDPC) Data through IV-MTR® Data Dictionary

This document describes the Informed Delivery Post-Campaign (IDPC) data fields available through the IV-MTR application.

Data Files
06/24/2026
Updated List: Service Type Codes for Intelligent Mail® Package Barcode (IMpb)

This document provides the updated service type codes for  Intelligent Mail® Package Barcodes.

Data Files
06/01/2026
May 2026 Nixie Volume

This spreadsheet contains the UAA statistics for May 2026.

Data Files
05/28/2026
Population Mobility Trends 12-Month Historical (CSV) Sample File