Yep, makes sense, especially if they sell those zip+4 lists.

Kind of related, has anyone had any experience with selecting zip codes based on a given zip code and a radius from it? A mailing list I use has that feature to target newsletters and would be a handy function to have. I'm guessing it must have some sort of latitude/ longitude calculation in there.

Pete Haworth

On Nov 30, 2010, at 4:42 PM, Bob Sneidar wrote:

Right, but not a lot from one place. I think their acceptable use would be under 30 or 40 hits a day from one IP, but if they get thousands, I think someone might contact you. They have some kind of published Acceptable Use policy on the site don't they? If not, then I guess you are in the clear.

Bob


On Nov 30, 2010, at 4:09 PM, Peter Haworth wrote:

USPS has a zip code lookup feature on their web site and seems like they would expect a lot of people using it....

Pete Haworth

On Nov 30, 2010, at 2:14 PM, Bob Sneidar wrote:

Also be advised that too many hits from one place may result in alarms going off. It may have changes since I thought about doing this way back when, but they offered this site as a way for the every day user to get a zip+4, not for a commercial app to do it on the cheap as a way to avoid paying for the zip+4 database, which back then at least they charged you for.

Bob


On Nov 27, 2010, at 12:50 PM, stephen barncard wrote:

If you want to do it the 'right' way you might consider getting an API key....then you can be sure it will continuously work - screen scraping may
fail if they change the website.

The USPS appears to have extensive APIs available - looks like it talks
XML..

http://www.usps.com/webtools/address.htm

http://www.usps.com/webtools/htm/Development-Guide-v3-0b.htm



On 27 November 2010 09:53, James Hurley <jhurley0...@sbcglobal.net> wrote:

I sent this message a while back, but I suspect it got lost in the
RunRev-LiveCode changeover.

At the USPS web site (http://zip4.usps.com/zip4/) it is possible by entering the street address, the city and the state to obtain the 9 digit
zip code for that address.

This may be naive, but is it possible to do this from within LiveCode by
script?

Jim



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Stephen Barncard
San Francisco Ca. USA

more about sqb  <http://www.google.com/profiles/sbarncar>
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