Dex

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

• Advertising Directory & Guide
• Computers & Equipment Repairs & Maintenance
• Professional Organizations

North American Industry Classification System (NAICS) Categories:

• Advertising Agencies > Directory Advertisers
• Media Representatives > Guides & Directories
• Computer And Office Machine Repair And Maintenance
• Professional Organizations

Standard Industry Classification (SIC) Categories:

• Radio Television & Publisher's Advertising Representatives > Guides & Directories
• Computer Maintenance And Repair
• Professional Membership Organizations