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TUCoPS :: Phreaking General Information :: attnetwk.txt

The New AT&T Network

                           The NEW AT&T Network by Lucky225

  It seems that AT&T was not to fond of my ANI Spoofing article that
appeared in 2600 (17:4) Just a few days after I picked up a copy of the
new 2600 and saw that my article had been printed, I started noticing a
lot of changes in the AT&T network. First they shut off their 800 ANAC,
a few days later calls that were routed to 800-673-7286 by the Verizon
Long Distance operator were handled strangely.  I began noticing that if
I made a call through the Verizon Long Distance operator to
800-673-7286, I could place calls to 800 numbers NOT on the AT&T
network, but that the ANI was being sent as '615-986-9873' or ANI II
Pair 23 followed by areacode 904. Thus, calls placed through the Verizon
Long Distance operator to AT&T's 800-operator could not be used to spoof
ANI any more.  The 615 number belongs to a PBX owned by AT&T in
Nashville, TN.  I could still spoof ANI on the AT&T network if I
diverted through my local operator or various other 101XXX long distance
carrier operators, but this April it stopped working.  I soon figured
out what was happening.  AT&T has centers all around the country
including Alaska and Hawaii. The way SS7 works, depending on where your
calling from, an 800 number can be routed to various other places. For
example their could be a nationwide 800 number that alows you to call
from any where in the country, but say a person that calls the same 800
number from Florida could get routed to that business's office on the
east coast, and a person that calls from California may get routed to
the west coast office.  That's what it's like when you call
800-673-7286, you get routed to the nearest AT&T center near you to take
the call. So when I was making a call through the Verizon Long Distance
operator to 800 673 7286 I would get routed to the Florida AT&T center
because the Verizon Long Distance operator I got was based out of
Florida(813), which is why when I had the AT&T operator dial an ANAC it
would show 23-904(Florida). However, not all Verizon Long Distance
operators are based in Florida, some of them are based out of
Kentucky(606) which for whatever reason will get you the Nashville, TN
Center.  The Nashville Center is the only center I have seen so far that
transmits ANI with ANI II Pair "00" and a full 10 digit phone

The AT&T Centers:

As I mentioned, there are various AT&T centers throughout the country,
and they are also the centers that handle the automated AT&T Long
Distance operator services as well as 800-call-att and 800-operator.
With the new upgrade that AT&T is implementing (wide spread across the
country I preditct by now) each center is geting a total make over,
there will be no more ANI spoofing to AT&T numbers, they are updating
these centers so that you can call any 800 number through the AT&T
carrier.  Calls to 800 673 7286 that have an ANI fail will no longer use
the phone number you give as ANI when calling other toll free numbers.
Instead, ANI II pair 23 and the areacode of the AT&T center will be
used.  However, the best part is that you can place calls to toll free
numbers without speaking to an operator. Simply dial
10-10-ATT-0(10-10-288-0) and enter the toll free number you want to
call. The ANI will show up as ANI II pair 23 and the areacode of the
AT&T Center, op diverting without even having to speak to the op!
However you will notice that if you try to dial 800-call-att or
800-673-7286 it will apear that your ANI still shows up, this is because
these numbers are handled by the same AT&T center.  However any
toll-free number not handled by the AT&T center(basically any toll-free
number that's not used for AT&T operator services) will be processed
with your ANI not being transmited.

There are a few advantages and disadvantages of this new system.  The
only real disadvantage is that you can not spoof ANI any more.  The
advantages however are that you can place calls to basically any toll
free number you wish without your ANI being passed simply by dialing
10-10-ATT-0 and then pressing in the toll free number you want to call
at the AT&T prompt.  You can even use this at payphones to call toll
free numbers that don't allow payphone calls or to get around payphone
surcharges.  Op diverting used to be so hard, local ops not wanting to
help you out, and 101XXX carrier ops only being able to be reached from
certain parts of the country, and the real downside being that you had
to talk to an operator, that by the way might listen in to your call,
when trying to divert to toll free numbers, but now thanks to AT&T's new
network that you can reach anywhere in the country by simply dialing
10-10-288-0 or even just 00 if you have AT&T, and you dont even have to
talk to an operator you just punch in the toll free number you want to
call on your touch tone keypad.  You can even divert to that toll-free
number using your modem to find out what that carrier is you always
wanted to know is by setting your modem to dial 10-10-288-0,
1-800-xxx-xxxx, without fear of your ANI showing up.  I'm sure AT&T logs
your ANI and probably would take action if you were harassing a
toll-free number long enough, but for now you can think of 10-10-288-0
as your own free ANI blocking service.

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