At&T

At&T is also listed under the following categories: Standard Yellow Pages Heading (SYPH) Categories:

• Cellular & Mobile Telephone Service
• Internet Marketing Services
• Telephones Communications Services
• Web Site Design
• Wireless Communications
• Internet Service And Access Providers

North American Industry Classification System (NAICS) Categories:

• Wired Telecommunications Carriers > Local & Long Distance Telephone Service
• Wired Telecommunications Carriers > Internet Service Providers
• Wireless Telecommunications Carriers (Except Satellite) > Cellular & Mobile Phone Service Companies
• All Other Telecommunications > Internet Service Providers
• Internet Publishing & Broadcasting & Web Search Portals > Internet Marketing Services
• Custom Computer Programming Services > Web Site Design

Standard Industry Classification (SIC) Categories:

• Radiotelephone Communications > Cellular & Mobile Telephone Service
• Radiotelephone Communications > Cellular & Mobile Phone Service Companies
• Telephone Communications, Except Radio > Local & Long Distance Telephone Service
• Information Retrieval Services > Internet Services > Internet Service And Access Providers
• Information Retrieval Services > Internet Services > Internet Marketing Services
• Information Retrieval Services > Internet Services > Internet Web Site Design