Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: utzoo!watmath!clyde!cbatt!ucbvax!XX.LCS.MIT.EDU!JSOL
From: JSOL@XX.LCS.MIT.EDU.UUCP
Newsgroups: mod.telecom
Subject: why some NPA's are splitting faster than others.
Message-ID: <12275453354.12.JSOL@XX.LCS.MIT.EDU>
Date: Sat, 31-Jan-87 22:19:13 EST
Article-I.D.: XX.12275453354.12.JSOL
Posted: Sat Jan 31 22:19:13 1987
Date-Received: Tue, 3-Feb-87 22:03:38 EST
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The ARPA Internet
Lines: 9
Approved: telecom@xx.lcs.mit.edu

One reason is that in the new 508 area, all long distance calls require 1+.
In the remaining 617 area code, most of the calls are local. Also, the 508 code
still has alot of Step and Crossbar equipment, and the 617 area code is likely
to be all-electronic (or at least mostly so) by that time. The introduction
of N1X and N0X prefixes is easier in the 617 area code, and probably won't be
needed in the 508 code.

That's my 2c.
-------