Path: utzoo!censor!geac!torsqnt!news-server.csri.toronto.edu!rutgers!att!tut.cis.ohio-state.edu!zaphod.mps.ohio-state.edu!rpi!julius.cs.uiuc.edu!apple!bionet!hayes.ims.alaska.edu!accuvax.nwu.edu!nucsrl!telecom-request
From: dattier@ddsw1.mcs.com (David Tamkin)
Newsgroups: comp.dcom.telecom
Subject: Re: New 410 Code for MD
Message-ID: <14888@accuvax.nwu.edu>
Date: 21 Nov 90 15:51:15 GMT
Sender: news@accuvax.nwu.edu
Organization: TELECOM Digest
Lines: 44
Approved: Telecom@eecs.nwu.edu
X-Submissions-To: telecom@eecs.nwu.edu
X-Administrivia-To: telecom-request@eecs.nwu.edu
X-Telecom-Digest: Volume 10, Issue 839, Message 3 of 7


Carl Moore wrote in volume 10, issue 836:

| It will be interesting to see what's done in the Laurel and Annapolis
| areas.  Along with the "default" exchanges (which you would find on
| pay phones in those areas), they have pseudo-foreign exchanges
| providing metro service for both DC and Baltimore areas.  It reminds
| me of the Los Angeles foreign exchanges (which stayed in area 213 at
| the 213/818 split) used in places like Burbank and Pasadena, whose
| other exchanges were put in 818.

When 708 was split from 312, the pseudo-Chicago prefixes in the
Evanston (BRoadway 3), Cicero (BIshop 2), and Elk Grove (part of 569)
central offices remained in 312, even though they are used only in the
suburbs.  After all, their purpose is to provide Chicago service out
there, and that includes seven-digit dialing to and from Chicago.

For billing of individual incoming or outgoing calls, they are treated
as Rogers Park, Austin, and Newcastle respectively.  (For calls
charged by rate center rather than by district office, 242 is treated
as part of Lafayette.)

I imagine that Annapolis's DC-metro service will stay in 301 (unless
it has already stayed in 202!) and Laurel's Baltimore-metro service
will go into 410.

Someone else asked whether the 301/410 split is the first time that
the major city in an NPA has received the new code instead of
retaining the old one.  I think that's rather a subjective call: when
619 split from 714, no doubt more phones and more people stayed in 714
but the single largest city involved was probably San Diego, which
went into 619.  Conversely, when 708 split from 312, more people and
more lines changed area codes but the single largest city kept the
original code.  Who's to say which city is the most important in an
area code (other than single-city NPA's like 202 and 312)?

I think two changes in such rapid succession in the way to dial from
DC to its Maryland suburbs would have been too much for the minds of
our civil servants and way too much for the minds of our elected
officials.


David Tamkin  Box 7002  Des Plaines IL  60018-7002  708 518 6769  312 693 0591
MCI Mail: 426-1818  GEnie: D.W.TAMKIN  CIS: 73720,1570   dattier@ddsw1.mcs.com