Download is available immediately upon purchase and for the duration of the annual subscription.
We update our database quarterly and recommend you download the ZIP Code to Area Code database quarterly as well.
To update your database without human intervention, we can provide an FTP address for you to write a script to access. Just request it after purchase.
Comma-Separated Values (CSV) Text File
Official U.S. Postal Service five digit ZIP Code
All standard Area Code by ZIP Code combinations are listed. Toll-free Area codes such as 800, 866, 877 and other specialty area codes are not included. The first digit is in the range of 2-9, the second digit can be a 0-8, and the third digit can be a 0-9.