Welcome to the Dial-A-ZIP server cluster!

Dial-A-ZIP offers US address validation to Endicia Internet Postage, Envelope Manager Software and a number of OEM software manufacturers. Dial-A-ZIP verifies US mailing addresses, providing address standardization, ZIP+4 and carrier route information, Enhanced Line of Travel data, a residential /business delivery flag, a UPS rural-delivery flag, and the latest USPS Delivery Point Validation service which indicates if a given address is indeed "deliverable" as determined by the USPS.

For information on incorporating the patented Dial-A-ZIP process in your software product, contact PSI Systems at 800-576-3279 x140.



Envelope Manager




Endicia Internet Postage