If you're a direct customer, use your MIS contact. We've used them for nearly 8 years, and I've been consistently impressed. If not, your upstream should be your first point of contact. For maintenance (e.g., prefix-list mods) they tend to take their time unless you insist on expedition; but, for performance-impacting issues, they're quite responsive. cheers, brian On Wed, 28 May 2008, Philip L. wrote: :Does anyone have information or a contact at AT&T with regards to :setting up BGP blackholing with them? I see that the question has been :asked in the past but there was no definitive answer, at least none that :I could find. : :--Philip L. : : : : -- ___________________________________ Brian Wallingford Director, Network Operations MegaNet Communications, TCIX, Inc. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~