Data Files
10/02/2026
Undeliverable-as-Addressed (UAA) Statistics by Mailing Industry Quarterly Report (Q4 FY26)

ACS Nixie stats by industry for FY26 Q4.

Data Files
10/01/2026
September 2026 Nixie Volume

This spreadsheet contains the UAA statistics for September 2026.

Data Files
10/01/2026
ZIP Codes by Area and District codes

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

Data Files
09/28/2026
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. Please note that items in bold text were updated or added recently.

Data Files
09/21/2026
2027 Labeling List and Mail Direction File Schedule

This is the Labeling Lists production schedule for 2027.

Data Files
09/18/2026
ZIP Code Boundaries GeoJSON Sample File
Data Files
09/18/2026
ZIP Code Boundaries Sample File
Data Files
09/17/2026
Emerging Roads 1-year GeoJSON Sample File
Data Files
09/17/2026
Emerging Roads 30-days GeoJSON Sample File
Data Files
09/17/2026
Emerging Roads 1-year Geodatabase Sample File