[188793] in North American Network Operators' Group

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Re: phone fun,

daemon@ATHENA.MIT.EDU (John Levine)
Fri Apr 15 17:48:45 2016

X-Original-To: nanog@nanog.org
Date: 15 Apr 2016 21:48:18 -0000
From: "John Levine" <johnl@iecc.com>
To: nanog@nanog.org
In-Reply-To: <20160415212138.29C9146BF6E3@rock.dv.isc.org>
Errors-To: nanog-bounces@nanog.org

>NA has a 10 digit scheme (3 area code - 7 local) though most of the
>time you end up dialing the 10 digits.
>
>Australia has a 9 digit scheme (1 area code - 8 local) ...

North America uses en bloc signalling, Australia uses CCITT style
compelled signalling.  That's why you have variable length
numbers and the split between area code and local number can
change.

>We are no longer in a age where we need to route calls on a digit
>by digit basis.

Right.  North America left that age in 1947, the rest of the world
only caught up in the 2000s.

R's,
John

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