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database zip codes with area code

Posted: Fri Jun 15, 2007 4:56 am
by paragonconcept
Hello,
Working on a VoiceXML application, and i'm trying to keep most of my functions internal without having to use whitepage type services. I've been looking all over the net for a database of all the US zip codes, with corresponding area codes. I have the NANPA database at the moment, but thats only 1/2 the solution, it provides the area code, and the state.


I have a seperate database of all the US zip codes, and their city names w/ long & lat quordinates, but it doesn't apply the area code to it.

Any idea where i can get this information?

Thanks

~Paragonc

Posted: Fri Jun 15, 2007 7:57 am
by feyd
It can't be guaranteed that a single area code corresponds to a single zip code. In fact they don't relate at all beyond covering geographic regions.

Posted: Fri Jun 15, 2007 2:52 pm
by paragonconcept
feyd wrote:It can't be guaranteed that a single area code corresponds to a single zip code. In fact they don't relate at all beyond covering geographic regions.
Understood - but it can list which ones are included.

Example: 619 (san diego) would include 91941, 91945. 92101 -etc.......

i'd like to use the area codes to get a list of the possible zip codes, that way i can start establishing some search radius's