nanog mailing list archives

Re: phone fun, was GeoIP database issues and the real world consequences


From: "John Levine" <johnl () iecc com>
Date: 15 Apr 2016 21:48:18 -0000

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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