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From: ark@alice.UucP (Andrew Koenig)
Newsgroups: net.consumers
Subject: Re: Re: Cashier wants zipcode?
Message-ID: <4762@alice.UUCP>
Date: Wed, 1-Jan-86 02:17:06 EST
Article-I.D.: alice.4762
Posted: Wed Jan  1 02:17:06 1986
Date-Received: Thu, 2-Jan-86 00:47:02 EST
References: <890@whuxl.UUCP>
Organization: Bell Labs, Murray Hill
Lines: 12

> The market research company I used to work for needed something for
> geographic districts back before their were zipcodes.  The first two digits
> in their 5-digit code is the state number (states are numbered sequentially
> in alphabetical order, except that Alaska and Hawaii are 49 and 50, placing
> this is the proper time perspective) and followed by three digits of within
> state district.  Problem was, that these had to be looked up by hand.

Zip codes use low numbers in the East, high numbers in the West.
Thus Bomoseen, Vermont is 05732 and San Francisco, California is
94120 (and probably other zip codes as well).  Some states have
more than one initial digit pair, such as New York (100xx for Manhattan
but 11550 for Hempstead).