[comp.dcom.telecom] What Is 10288?

d.m.p.@pro-party.cts.com (Don Peaslee) (06/21/89)

Recently I've seen some discussion on a local BBS concerning the prefix 10288
(or possibly 102880).   It was said that adding this sequence to a
modem-dialed phone number will "give cleaner lines."   Any truth to that, and
what the heck IS this number anyway?

Don


[Moderator's Note: '10288' is the Carrier Access Code for AT&T. At the time
the local telephone companies split away from AT&T, the new rules required
that every phone subscriber be allowed to choose which long distance carrier
was desired. People who did not return 'ballots' to their local phone company
were assigned at random to one of several companies handling long distance
calls, including AT&T, Sprint and MCI. The long distance carrier of assignment
became your 'default' -- or dial one plus -- carrier; meaning that when
you dialed a long distance call, your call was automatically handled by
the 'default' carrier. You are free to choose whatever carrier you want
to handle your long distance calls. If you do not want the carrier assigned
to your line to handle your long distance calls, then you must dial a five
digit Carrier Access Code *before* dialing the long distance number.

For example, MCI might be the carrier assigned to your line. In order to
have AT&T handle the call instead of MCI, you must first dial 10288, *then*
the long distance number. If AT&T was your 'default' (or assigned) carrier,
then to force the call to be handled by Sprint you would dial '10333' before
entering the long distance number. Likewise, MCI access is via '10222',
and there are numerous other carriers, each with a five digit code of the
form '10xxx' which will handle your long distance call if you dial their
code first.

The message you saw on your local BBS was probably trying to say that the
author felt long distance calls with a modem were better handled by AT&T.
Since he did not know for sure what default carrier was assigned to the
line he was using, he assured himself of AT&T handling of his call by
using the '10288' prefix before each call dialed.  PT]

[FURTHERMORE: In Friday's Digest -- How a radio transmitter religiously
irritates Indiana Bell in Hammond, IN; and how complaints by the telco
and its subscribers to the FCC have accomplished very little. See you
tomorrow!   :)  PT]