Zip code database?

[markw at mohawksoft.com]

I looked around and could not find a good "up to date" U.S. zipcode
database. I found a couple, but they are all derivatives of the U.S.
census TIGER 2000 database which is missing a good number of entries and
lacks any alias information, like Dorchester vs Boston.

Does anyone know of a valid zip code database that can be downloaded?

I have begun analyzing the latest TIGER 2006SE database and am putting
together a list of zipcodes and am joining them to external sources of
reference to build a more comprehensive DB. It would be easier if I didn't
have to do this, obviously.

Conversely, if no one knows of anything, should I make my results public?



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