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Path: utzoo!watmath!clyde!burl!ulysses!mhuxr!mhuxt!houxm!vax135!petsd!peora!jer
From: jer@peora.UUCP (J. Eric Roskos)
Newsgroups: net.mail,net.mail.headers
Subject: Re: RFC920 domains vs. cow patties (flame)
Message-ID: <1044@peora.UUCP>
Date: Mon, 10-Jun-85 08:53:25 EDT
Article-I.D.: peora.1044
Posted: Mon Jun 10 08:53:25 1985
Date-Received: Tue, 11-Jun-85 04:44:59 EDT
References: <918@sdcsvax.UUCP>
Organization: Perkin-Elmer SDC, Orlando, Fl.
Lines: 30
Keywords: domains NIC rfc920
Xref: watmath net.mail:889 net.mail.headers:472

>The telephone co. uses a single-level hierarchy (area code), as
>do the airlines.  The post office uses both single (zip) and
>double (city,state).

While I agree with everything you said, the above statements are not correct.
The zip code is a geographical hierarchy such as you are proposing:

	National Area
	|   --post office or delivery area
	|   |   --segment
	|   V   V
	V  --   --
	32811-7307
	___   --
	 ^    ^
	 |    |
	 |    --Sector
	 --Sectional center (SCF) or large city

I.e., moving from left to right identifies the geographical location more
and more exactly.  The telephone numbers also have more levels than you
listed; consider the country code, area code, and exchange, each of which
identifies a geographical area.
-- 
Full-Name:  J. Eric Roskos
UUCP:       ..!{decvax,ucbvax,ihnp4}!vax135!petsd!peora!jer
US Mail:    MS 795; Perkin-Elmer SDC;
	    2486 Sand Lake Road, Orlando, FL 32809-7642

	    "Erny vfgf qba'g hfr Xbqnpuebzr."