By: PhreakerD7 and sToRm Although we aren't really sure when exactly the first 711 number showed up, they've been kind of a phreaking anomoly over the years. They were spotted in the letters section of the 1997 Spring issue of 2600 Magazine, and have appeared on many popular phreaking forums since then, like BinRev in 2005 (http://www.binrev.com/forums/index.php/topic/11638-number-i-found-scanning) After sToRm found a couple 711 numbers during some exchange scanning, it dawned on us what a perfect topic this would make for ConfCon '09. For those of you that don't know what the 711 numbers are, let me explain. These numbers are just some random (usually toll-free) numbers that, when you call them, will sometimes read off 1000, followed by a hundred, followed by 2 digits, followed by 711, then followed by 7 digits. The hundred and the 2 digit number seems to be random, and the 7 digit number is always the same for that individual 711 number. The reason these numbers are called 711 numbers, is because the only common thing between all of them, is that it reads off 711. Let's call a couple. 800-504-1337 800-649-9097 Now that we know what they are, lets figure out how we came to our conclusion. First off, we used a RESPORG (800-337-4194) to figure out the RESPonsible ORGanization for these 711 numbers. Every single one returned AT&T. So we called the AT&T tech line dropped on us by ThoughtPhreaker (800-325-5555) and did a little SEing to figure out who actually owned these numbers. Like GreyArea pointed out in the thread on BinRev, these numbers are all owned by a company called West Interactive. So the next logical step here was to call up West Interactive, and figure out just what these numbers are for. We SEd the people over at West Interactive (and got thrown around a bit on their shitty PBX) until we finally reached a supervisor. After convincing them I was an intern at a local telco, they decided to indulge me and call a 711 number I gave them. They came back and told me that, although they owned the number, they had no listing of what it was for, or who was using it. They asked if they could have a techie call me back, and I said that was fine. So a couple hours after we'd called West Interactive, boom, the phones ringing. I pick it up, and sure enough, we had a techie on the other end. He kindly explained that these 711 numbers were actually test numbers. Used to help test new IVR systems they're setting up. The numbers read off I'm assuming are to test voice recognition and the DTMF tones to detect, well, DTMF tones. He seemed to know what he was talking about, but couldn't offer any other explanation other then that they were used to test IVR systems. There you have it. The legend of the 711 numbers finally busted. We have quite an extensive list of 711 numbers on the site, including a gem I found. An 811 number! Let's call it right now. 800-789-6324 All 711 numbers include the RESPORG, as well as a log of them being called 3 times, and the output of each call. If you have any more to add to the list, please send them in! We'd like the most extensive list of 711 numbers out there. Thanks, and props to ThoughtPhreaker and GreyArea for all the help. Any questions? RESPORG - 800-337-4194 800-798-9641 - Not recognized, code: ATX99 - 800-222-3000 800-14-711-5030951 800-98-711-5030951 800-16-711-5030951 800-895-1671 - AT&T 800-222-3000 900-16-711-4031418 800-59-711-4031418 100-59-711-4031418 800-895-0348 - AT&T 800-222-3000 800-16-711-5033118 800-11-711-5033118 900-14-711-5033118 800-513-0018 - Not recognized, code: ATX99 - 800-222-3000 800-46-711-3061853 900-40-711-3061853 800-31-711-3061853 800-649-9097 - Not recognized, code: ATX99 - 800-222-3000 900-14-711-3235212 800-17-711-3235212 800-25-711-3235212 800-654-7664 - Not recognized, code: ATX99 - 800-222-3000 900-48-711-4112587 1000-800-46-711-4112587 1000-800-48-711-4112587 100-52-711-4112587 800-433-6855 - Not recognized, code: ATX99 - 800-222-3000 1000-800-29-711-5030657 1000-800-29-711-5030657 1000-800-27-711-5030657 800-859-1337 - AT&T 800-222-3000 900-40-711-4062339 900-61-711-4062339 900-45-711-4062339 800-423-0116 - Not recognized, code: ATX99 - 800-222-3000 1000-800-13-711-4000729 1000-800-14-711-4000729 1000-800-27-711-4000729 800-506-3553 - AT&T 800-222-3000 1000-800-10-711-4086584 1000-800-45-711-4086584 100-59-711-4086584 800-964-8378 - Not recognized, code: ATX99 - 800-222-3000 800-99-711-4044605 1000-800-16-711-4044605 1000-800-26-711-4044605 800-522-5380 - Not recognized, code: ATX99 - 800-222-3000 1000-800-31-711-3228206 1000-800-44-711-3228206 100-57-711-3228206 800-877-6533 - Not recognized, code: ATX99 - 800-222-3000 900-13-711-5030974 1000-800-11-711-5030974 1000-800-10-711-5030974 800-504-1337 - Not recognized, code: ATX99 - 800-222-3000 1000-800-43-711-4113524 900-711-4113524 900-32-711-4113524 877-672-2324 - AT&T, 800-222-3000 900-14-711-4084929 900-47-711-4084929 1000-800-15-711-4084929 800-789-6324 - 811, Not recognized, code: ATX99 - 800-222-3000 100-57-811-3267347 100-48-811-3267347 100-44-811-3267347