Impact Directories

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

• Advertising Directory & Guide
• Yellow Pages Publishers

North American Industry Classification System (NAICS) Categories:

• Directory And Mailing List Publishers > Publishers Directories & Phone Books > Publishers Yellow Page Phone Books
• Advertising Agencies > Directory Advertisers
• Media Representatives > Guides & Directories

Standard Industry Classification (SIC) Categories:

• Miscellaneous Publishing > Publishers Directories & Phone Books > Publishers Yellow Page Phone Books
• Radio Television & Publisher's Advertising Representatives > Guides & Directories