You might want to keep an eye on this situation...

Source: http://news.netcraft.com/archives/20..._3_wiltel.html

Network problems at Internet backbone provider Level 3 have caused some intermittent connectivity problems today for customers of several U.S. access providers. The issue appears to be related to network integration of Wiltel Communications, which was acquired by Level 3 last fall. By late afternoon, East Coast time, Level 3 was reporting that the situation had been stabilized. Level 3 is one of the largest providers of wholesale dial-up service to ISPs in North America and is the primary provider of Internet connectivity for millions of broadband subscribers through its cable and DSL partners.
Source: http://www.jaguarpc.com/about/network.php

Our servers are housed in a Class A data center in Houston, TX USA with connections to multiple major backbone providers. Our data center is connected via multiple Gig-E, OC3 and DS-3 lines. The facility is connected to a network of fully redundant connections including Level3™, Wiltel™ (Williams), At&T™, Global Crossing™ and Time Warner™