Zip code +4 lookup

[Cable]

Does anyone know if there is info you can download somewhere that you could use to make some kind of lookup table for finding the extended 4 digit zipcode for a given address that could interact with FileMaker?

What I need to do it to type in an address and zip code and have FileMaker return the zip+4

For example, "123 anysteet, OH 12345" would return "123 anysteet, OH 12345-6789"

[Computer Geek]

I don't know if these would help, but in at least one, it mentioned FileMaker. I am doing the very same research too. If you find anything, please post.

http://www.semaphorecorp.com/cgi/zp4.acgi$find

http://www.barcodingfonts.com/barmore.htm

http://www.zipcodedownload.com/