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Verify Address and Zip Code

The USPS enables verification services, so provided a properly constructed string, one can verify addresses and lookup zip codes and/or locations. I've created both forms and services using USPS's services, a mixture of a VB.NET class to construct the correct string, as well as return the data, either as a dataset, or via a web service as XML.

Address

Suite/Apt

City

State (Abbreviation)