Data Files
06/08/2023
Z4 Info File

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

Data Files
06/08/2023
Early Warning System (EWS002C0.ZIP)

This document contains the Early Warning System data file for the CASS™ and MASS™ certification process.

 

Data Files
06/06/2023
2023 ZIP Code™ Split Listing (ZIPSPLIT) (Effective 7/01/2023)
Data Files
06/06/2023
ZIP Codes by Area and District codes

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

Data Files
06/05/2023
***Updated - New Areas*** - Area District 5-digit ZIP Codes (AREADIST_ZIP5.TXT)
Data Files
06/05/2023
City/State ZIP Code Weekly Compare
Data Files
06/05/2023
3 Digit ZIP/AISU Office List (AISUREPT.TXT)
Data Files
06/05/2023
AIS Congressional District File (CONG_DIST.TXT)
Data Files
06/05/2023
AIS County Name Table Layout (AISCNTY.TXT)
Data Files
06/05/2023
AMS County Name Table (COUNTY_NAME_TABLE.TXT)