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by admin
1:02 am in SOA Answers by admin
i am a web developer and am wanting to know of any web services that can be called upon to verify whether an address is valid (e.g., whether or not a certain city belongs with a certain zip code).
free services would be best obviously, but would also like to know of any pay services, as well.
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usps united states postal service dot com is a free service.
used to work for a cell company and they use it for billing.
You can do that on your own site. All you need is a zipcode table in your database. (There are free ones that have sparse data – city, state, zipcode – or you can buy expanded databases that have Lat/Lon data, timezone, all sorts of additional data, depending on who’s maintaining them.)