Phone & Address Directories
- Missouri State Telephone Directory
Look-up numbers for Missouri governmental offices as well as employees.
USA & Canada Directories
- Reference USA
Search 14 million U.S. businesses and 135 million U.S. residents for up-to-date information. The U.S. Business database may be searched by business type, size and geographic location.
Search indexed pdfs of yellow pages directories, including those for select cities in Missouri.
Find a person or business or search by area code, zip-code and reverse lookup. Provides directions and map showing location.
Search the AT&T online yellow pages by city, category or business name. Each business is cross referenced to other categories and includes location map and directions.
People and business search with reverse lookup.
Search white and yellow pages for toll-free numbers, area codes and reverse lookups. Also has links to international white pages for a variety of countries.
Federal Toll-Free Numbers
Links to Federal Toll-Free telephone numbers provided by the Federal Citizen Information National Contact Center
- Toll-Free Internet Directory
Search by product, service or company name for toll-free numbers.
Area & Country Codes
- Area Code Locations
Search for area codes in the U.S. and Canada by state, city or area code number.
- US & International Codes
Search for area codes, city codes or country codes or search by name of city or country.
- International Dialing Codes
A listing of country codes, International Direct Dialing prefixes and National Direct Dialing prefixes with definitions and instructions on how to use them.
- Superpages Global Directory
Search by country for people and business directories worldwide. Some directories require free registration.
Other Useful Directories
- Chambers of Commerce
Search by city name for contact information.
- Embassies & Consulates Directory
Directory & search engine of the World’s Embassies and Consulates.
- Federal Telephone Directory
Find frequently requested toll-free numbers, directories for Members of Congress, Cabinet Agencies, and more.
- USPS Zip Code Lookup
Search the United States Post Office zip code lookup by address, city, company or all cities in a zip code.