Dex
Official Directory by Qwest. Business, Residential, Government listings, browse by category.Toll free for all states including Utah.

Switchboard.com
Find a person, business, product, maps and directions, search by phone number.

SuperPages
Yellow pages, people pages, reverse lookup.

AnyWho
AT&T Yellow & white pages, toll free numbers, reverse lookup.

Internet 800 Directory

Area Codes
Area codes listed by number or listing by state/country.

Database of North American Area Codes

Zip Code and Address Information
U.S. Postal Service.

Canada 411
White and yellow pages.