Google can do reverse phone lookup. You can give it a try, and do it with their web APIs.

Just a suggestions.


>I have spent many many hours searching the web for what seems to me to be a simple thing with no luck and lots of frustration.
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>What I'm looking for is a reverse phone book lookup. that is: I send a phone number and I get back correct address information for that phone number.
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>This must be a free service of the United states Postal Service. I can't distrivute an application that includes a pay-for-use service
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>I can't even find a listing of XML web services that is useful (one that lists by service provided rather than company).
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>Does anyone know of a (non-commercial) listing of web services by information provided rather than by company providing it? And, mor specifically, a reverse lookup (phone number to address)?