Telephone Directories:

• All Pages US Internet Yellow Pages
• AnyWho.com Find People and Businesses in the U.S. and Canada
• Big Book Good for locating American businesses
• Big Foot Good access to white pages and e-mail directories
• Big Yellow Good for yellow pages or subject searches
• 800 Numbers
• Superpages Good for government directories, this directory will also do "reverse" searching.
• Telephone Directories on the Web Good for worldwide directories
• Switchboard Good for residential listings
• Ultimate White Pages
• Area Code Locator
  
• Area Code look up by city
• World Wide Area Codes