Tw Telecom

Tw Telecom is also listed under the following categories: Standard Yellow Pages Heading (SYPH) Categories:

• Internet
• Telecommunications Contractors
• Internet - Voice Application

North American Industry Classification System (NAICS) Categories:

• Electrical Contractors > Electronic & Communications Contractors > Telecommunications Contractors
• All Other Telecommunications > Internet Service Providers > Internet - Voice Application
• Internet Publishing & Broadcasting & Web Search Portals

Standard Industry Classification (SIC) Categories:

• Electrical Work > Electronic & Communications Contractors > Telecommunications Contractors
• Information Retrieval Services > Internet Services > Internet - Voice Application