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About Dial-A-ZIP Address Verification

Dial-A-ZIP is a form of US domestic delivery address verification that can look up the ZIP+4 and correct most common addressing errors. Through the Internet, Dial-A-ZIP can verify your address against the US Postal Service list of all addresses in the USA in less than one second. This process also verifies an address, which is required, before you can print Internet Postage for your mailpiece .

Note: To use Dial-A-ZIP, you need a connection to the Internet.

For additional, basic information, see also Guidelines: Address Verification.

You can customize various aspects of using Dial-A-ZIP to suit your preferences, including:

Automatically verifying your addresses as you edit addresses or copy addresses to the Clipboard.
Manually verifying addresses any time you choose.
Correcting both minor address errors and adding ZIP+4 Codes or adding only ZIP+4 Codes.
Hiding or displaying the Address Verification Status dialog box.
Running Dial-A-ZIP address verification in fast mode.

For more information about options, see About Advanced Dial-A-ZIP Options.