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Article #702

Re: Current Internation DNIC list?

#702
From: Erik Naggum
Date: Mon, 27 Aug 1990 21:22
31 lines
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Bill,

Thanks for the brief overview of the update process.

However, it should be noted that ISO 3166 doesn't specify a "Data
Country Code" set, but rather two- and three-character country
abbreviations (for a somewhat interesting concept of "country"), as
well as a three-digit numeric code for a wide range of uses.

The CCITT codes are assigned in Zones, which, hopefully for some
reason other than bureaucratic fumbling, is totally different from the
Zones defined for ISDN (telephone) numbers.  Anyhow, it makes sense to
have Zones for their purposes (routing), while, as you are probably
aware, the ISO 3166 codes are assigned in order of the alphabetically
sorted list of country names in French at the time ISO 3166 was first
conceived, with suitably large gaps for "future use".

I believe the four-digit DNICs were designed to make it easier to
parse an X.121 address, but it's getting pretty damn crowded in some
places with their escape codes and maximum of 15 digits.

Also, the DCC for USA is not 310, but any of 310, 311, 312, 313, 314,
315 and 316, and the ranges 317-319 and 320-329 are unassigned,
clearly available should the need occur.  The one-digit network code
is not exactly sufficient for countries with RPOAs instead of PTTs.

BTW, ISO 3166 A3 is supposedly leaving us soon.
--
[Erik Naggum]		Naggum Software; Gaustadalleen 21; N-0371 OSLO; NORWAY
	I disclaim,	<erik@naggum.uu.no>, <enag@ifi.uio.no>
  therefore I post.	+47-295-8622, +47-256-7822, (fax) +47-260-4427
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From: enag@ifi.uio.no (Erik Naggum)
Newsgroups: comp.protocols.iso
Subject: Re: Current Internation DNIC list?
Message-ID: <ENAG.90Aug27232203@svarte.ifi.uio.no>
Date: 27 Aug 90 21:22:09 GMT
References: <331@public.BTR.COM> <9008271234.AA23513@gateway.mitre.org>
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In-Reply-To: barns@GATEWAY.MITRE.ORG's message of 27 Aug 90 12:34:29 GMT
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