Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!wuarchive!texbell!vector!telecom-gateway
From: cmoore@brl.mil (VLD/VMB)
Newsgroups: comp.dcom.telecom
Subject: Allowing NXX Prefixes & Area Codes
Message-ID: <telecom-v09i0463m10@vector.dallas.tx.us>
Date: 19 Oct 89 19:29:53 GMT
Sender: news@vector.Dallas.TX.US
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Approved: telecom-request@vector.dallas.tx.us
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X-TELECOM-Digest: volume 9, issue 463, message 10 of 11

Based on notes arriving via TELECOM Digest, I have the following to
pass along:

416, Ontario, 1989? (need area code on toll calls within it)
919, North Carolina, 1989?  (need area code on toll calls within it)
313, Michigan, 1989? (1+ removed from 1+7D for toll calls within it)

When N0X/N1X area codes run out and NXX area codes become necessary, I
take it that that will be known, too.  (For example, 1+7D is still in
use in Delaware.  Where area codes and prefixes can use the same 3
digits, it is necessary for leading 1 to mean that "what follows is an
area code", and use of NXX area codes would force that meaning of
leading 1 into use in areas not already having it, right?)