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Address and Phone Numbers
Open Directory - Reference: Directories: Address and Phone Numbers: Area Codes
- Online tool that builds dialing codes based on locations selected. Includes many international dialing codes and some area codes. Also has a reverse phone number lookup tool and current time.
- Online tool that build dialing codes based on locations selected. Lists many international dialing codes and some area codes.
- Find international dialing codes and area codes by typing location in search input box. Information on direct dial prefixes.
Dial Codes Plus
- Listing of international dialing codes and area codes with instructions.
- Enter the 3-digit prefix or the city name to find an area code.
- Calling guide for United States and Canadian residents listing international country and city codes, phone books and time zones.
International Dialing Codes
- International and national direct dialing prefixes and instructions.
- Information about North American area codes, featuring changes, historical data and area code map. Detailed information on overlays and splits.
Local Calling Guide
- A free resource mainly aimed at telecommunications companies. Users can browse tabular data on North American area codes, numbering schemes, and rate centers. The data is available as XML for computer programs to read.
North American Numbering Plan Administration: Area Codes
- Find North American codes by a map, number, or location. Includes information on future planned area codes and a free downloadable area code database.
North American Numbering Plan NPA NXX Databases
- Databases of active NPA NXX combinations, telephone area codes, exchanges, and central office prefixes within the United States, Canada, and the Caribbean.
- Resolve any telephone number to its geographical location.
- Displays the current time, international dialing code, area codes and currency converter for almost anywhere. Includes instructions on country codes and international dialing code parts usage.
Time and Date
- International dialing codes for almost any country and area codes for many cities. The interface includes a dropdown selector and local times are provided with dialing codes.
UK Phone Information
- Returns area information, map, BT charge information, and nearby exchange names for telephone numbers, access/short codes, or the name of a location.
US Area Code Finder
- Area code lookup for the United States with maps. Search by state or by code.
US Area Code Locations
- Provides a list of towns and cities covered by each US area code including overlays and splits.
Verizon - US Area Code Lookup
- Find the major locations in a certain area code by entering the area code, or find the area codes that are used in a certain state by entering the state name.
World Search Dial Codes
- Contains world telephone codes and time zone information. Search by city, country or number.
World Telephone Numbering Guide
- Lists and links to current international dialing codes and area codes with formatting guides and provides information on recent and historical changes.
exUSSR Phone Codes
- Includes all cities of Russia, Ukraine, Belorussia, Moldova, Lithuania, Latvia, Estonia, Kazakhstan, Georgia, Uzbekistan, Azerbaijan, Armenia, Kirgizia, and Tadjikistan.
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Last update: Wednesday, December 9, 2009 4:50:25 PM EST -