Path: utzoo!attcan!cmtl01!matrox!uvm-gen!uunet!lll-winken!ames!netsys!vector!nobody From: ron@ron.rutgers.edu (Ron Natalie) Newsgroups: comp.dcom.telecom Subject: Re: 1+ dialing and new AC for SF Bay Area? Message-ID: Date: 23 Jan 89 18:15:07 GMT Sender: chip@vector.UUCP Lines: 10 Approved: telecom-request@vector.uucp X-Submissions-To: telecom@bu-cs.bu.edu X-Administrivia-To: telecom-request@vector.uucp X-TELECOM-Digest: volume 9, issue 26, message 6 Mostly this comes from the use in the local area of exchanges that have N0X/N1X prefixes. Washington DC just went through this change as well. Since they never used to allocate prefixes from this range, it never used to be a problem, but now it needs 1+ to indicate that what follows is an area code and no 1+ to indicate that the prefix is following. From what I've read, the Numbering plan has always intended to have NXX prefixes, but it was a convenient hack to differentiate area codes by this basis in the past. It certainly saved dialing time, but touch tone and autodialers made this less of a problem. -Ron