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Directory Sites
Listing of international telephone country and city codes.
www.the-acr.com
Lists of exchanges that have moved or are moving from one North American area code to another.
frodo.bruderhof.com
North American Numbering Plan Administration: Area Codes
Find North American codes by a map, number, or location.
www.nanpa.com
International and national direct dialing prefixes and instructions.
kropla.com
Includes all cities of Russia, Ukraine, Belorussia, Moldova, Lithuania, Latvia, Estonia, Kazakhstan, Georgia, Uzbekistan, Azerbaijan, Armenia, Kirgizia, and Tadjikistan.
phonecodes.narod.ru
Information about North American area codes, featuring changes and historical data.
www.lincmad.com
FAQs on Area Codes from FCC (USA)
The Federal Communications Commission answers frequently asked questions regarding area codes in the US.
www.fcc.gov
Area code lookup for the United States with maps. Search by state or by code.
www.areacodesearchengine.com
Returns area information, map, BT charge information, and nearby exchange names for telephone numbers, access/short codes, or the name of a location.
www.ukphoneinfo.com
Philippines Telephone Area Codes
Provides a list of telephone codes for Philippine cities, destinations and provinces.
phone-codes.islandsphilippines.com
Offers pulldown menus to lookup by city or area code.
freebizadsweb.com
Cross reference by area code and exchange to determine the telephone company and place name.
www.fonefinder.net
Find area code by city and state, Find City and State by area code.
www.infospace.com
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.
www22.verizon.com
International telephone dialing country and city codes directory.
www.interworldcodes.com