| 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 |
US LEC
US LEC is a telecommunications carrier providing voice, data and Internet services to business customers throughout the southeastern and mid-Atlantic United States. US LEC was founded in 1996 and is
headquartered in Charlotte, NC. US LEC operates 26 switching centers and serves more than 14,000 mid-to-large-sized business customers in more than 75 markets. US LEC can bundle voice and data services using its state-of-the-art Lucent CBX500 ATM switch network. They offerr the densest coverage of all competitive carriers within its footprint. Their switches operate in a focused, regional network designed to provide complete coverage for their customers, in addition to supporting growth.
US LEC has a local presence in each of its markets offering a team of sales, sales support and operations professionals. They own and operate their own digital switches. They also operate their own integrated billing platform. US LEC's Network Operations Center (NOC) staff closely monitors the status of each switch location 24x7 to identify and solve any trouble that may arise.
