| ACC Business | ICG Communication | New Edge | TelePacific |
| AT&T | ITC Deltacom | Paetec | US LEC |
| Cbeyond | MCI | Qwest | XO Communications |
| Covad | Megapath | Savvis | Xspedius |
| DSL.net | Netifice | Sprint | Communications |
XO Communications
XO Communications is a full-service provider of communications services for small & growing businesses, larger enterprises and carriers. XO™ possesses a wealth of local fiber, DSL, fixed wireless, data networking, Internet and long-haul network assets that
few U.S. emerging service providers can match. In fact, XO is positioned as one of the only national, local end-to-end broadband communications companies in U.S. That means they're about breadth, depth and execution on a national scale in the best local markets.
XO™ has a wealth of network assets that ensure they can handle your current needs and that they are well positioned for the convergence of voice and data IP services. XO has an OC-192 IP backbone with OC-12 uplinks in their markets and data centers; that means they have one of the highest capacity and scalable IP backbones in the industry, along with the highest levels of performance and reliability. A suite of world-class tools that facilitate the communication of customer information and continuous network monitoring set the XO network apart from its rivals.
