Directories

AnyWho (AT&T toll-free directory)
Area code look-up
BigBook: search nationwide yellow pages
Canadian postal code lookup
Find a Grave
Infobel World: telephone directories on the Web
Internet 800 Directory directory of free toll free,
800, 888, 877, and 866 listings of businesses
National address server (zip + 4 codes)
North American (area code)
Numbering Plan Administration
People Search : free WhoWhere? white pages
Reverse lookup on AnyWho telephone directory
Switchboard
US Postal Service zip code search
Virtual Gumshoe : investigative resources
available on the Web
whoRepresents?com: a quick reference guide to & for representatives
Zip code lookup
Zipinfo.Com