At&T

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

• Telephones Communications Services
• Voice Mail Service

North American Industry Classification System (NAICS) Categories:

• Wired Telecommunications Carriers > Local & Long Distance Telephone Service
• Telephone Answering Services > Telephone Answering & Messenger Services > Voice Mail Service

Standard Industry Classification (SIC) Categories:

• Telephone Communications, Except Radio > Local & Long Distance Telephone Service
• Business Services, Nec > Telephone Answering & Messenger Services > Voice Mail Service