Internet 800 Directory 
Toll free listings of businesses by company, number, location and product or service.
http://www.inter800.com/ATT AnyWho Toll-Free
Search for numbers by business name.
http://www.anywho.com/tf.html
National Internet Tollfree Directory
Offers toll free telephone numbers for United States and Canadian businesses with web site links and email addresses. Search by name, key words or heading, or browse categories.
http://www.internettollfree.com/
Canada TollFree
Sympatico's online directory of toll free business phone numbers.
http://www.canadatollfree.ca/Search/
Hard to Find 800 Numbers
Toll-free customer service phone numbers of online retailers, when available.
http://www.hardtofind800numbers.com/
