National Do Not Call Registry

National Do Not Call Registry is also listed under the following categories: Standard Yellow Pages Heading (SYPH) Categories:

• Telemarketing Equipment & Services
• Telephones Communications Services
• Communications Regulation

North American Industry Classification System (NAICS) Categories:

• Other Electronic Parts And Equipment Merchant Wholesalers > Telephone & Telegraphic Equipment > Telemarketing Equipment
• Wired Telecommunications Carriers > Local & Long Distance Telephone Service
• Telemarketing Bureaus > Telephone Answering & Messenger Services > Telemarketing Services
• Regulation And Administration Of Communications, Electric, Gas, And Other Utilities > Communications Regulation

Standard Industry Classification (SIC) Categories:

• Telephone Communications, Except Radio > Local & Long Distance Telephone Service
• Electronic Parts & Equipment > Telephone & Telegraphic Equipment > Telemarketing Equipment
• Business Services, Nec > Telemarketing Services
• Regulation & Admin Of Communications, Electric, Gas & Other Utilities > Communications Regulation