Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!ucsd!ames!killer!vector!telecom-gateway
From: nvuxr!deej@bellcore.bellcore.com (David Lewis)
Newsgroups: comp.dcom.telecom
Subject: Re: Area Codes and N10 style numbers
Message-ID: <telecom-v09i0177m05@vector.dallas.tx.us>
Date: 26 May 89 12:47:23 GMT
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In article <telecom-v09i0173m02@vector.dallas.tx.us>, nvuxg!mjs1@bellcore.
bellcore.com (Sonnier) writes:

] So, the bottom line is that all N11 and N00 codes are reserved, for the
] obvious reasons.  The N10 codes (except 610) are all included in the
] unassigned codes.  This can be ascertained by looking at the tables of
] assigned NPA codes, and see which 19 are not assigned.
] The 610 code is (apparently) used in Canada, so is reserved.
]
] [Moderator's Question: So does this mean codes 210-310-410-510-710-810-910
] *will be* used as area codes or *won't be* used?  If not, why not? I think
] the thing with 610 is that unlike here where Western Union operates the
] telex machines, in Canada many (or all?) are run by the telephone people.
] If those numbers, plus the two 'regular' left overs are still available,
] then indeed it will be several years before we run out, no?   PT]

Will be used.  They're included in the list of unassigned codes; to
clarify what Mike said, the list of unassigned codes is the list of
legally-assignable but as-yet-not-assigned codes.

The same source Mike was quoting (Notes on the BOC Intra-LATA Networks
(1986)) estimates that the 152 available NPA codes will be exhausted in
1995.  At that time, it'll be necessary to go to NXX format NPA codes;
that also occupies several pages of Notes explaining what that'll be all
about.

--
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David G Lewis		"If this is paradise, I wish I had a lawnmower."
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