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Old April 6th 12, 05:15 PM posted to uk.railway,uk.transport.london,misc.transport.rail.americas
Stephen Sprunk Stephen Sprunk is offline
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Default Telephone line numbers, prefixes, and area codes

On 05-Apr-12 18:42, Adam H. Kerman wrote:
Stephen Sprunk wrote:
On 01-Apr-12 12:19, wrote:
Originally Mexico was to have an area code, but that was changed to a
separate country code.


Two area codes: 905 for Mexico City and 706 for northwest Mexico.

That ended in 1991.


They were reserved area code-like dialing patterns within the NANP to
reach parts of Mexico; outside the NANP, the country code 52 had to be
used. Prior to international direct distance dialing, it meant that the
caller could dial the number himself without an intercept operator. After
IDDD, the country code or area code was permissive.


Ah, so they weren't really area codes per se. Mexico never intended to
be part of the NANP; we just had dialing shortcuts for commonly-called
areas within Mexico.

Did using those shortcuts result in lower rates since an operator wasn't
needed? Or was it just a matter of convenience/speed?

You may recall that until 1980, northwest Mexico was dialed with 903.
Mexico changed its numbering pattern. That part of Mexico got a "city code"
of 6, so the NANP area code was changed to 706.


I wouldn't recall that since I was only two or three at the time and
probably didn't even know Mexico _existed_, much less how to call it.

S

--
Stephen Sprunk "God does not play dice." --Albert Einstein
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