Sites 20
Contains all area codes in the United States. Search by city or phone number.
Database of area codes across North America. Includes an interactive area code map and list of cities within each code.
Provides a numerical list of North American area codes. Includes region, description and timezone.
Listing of North American area codes. Includes approximate number of cellular phone numbers.
Provides fixed-line telephone area codes in the Republic of Ireland.
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.
International and national direct dialing prefixes and instructions.
Online tool that build dialing codes based on locations selected. Lists many international dialing codes and some area codes.
Listing of international dialing codes and area codes with instructions.
Includes all cities of Russia, Ukraine, Belorussia, Moldova, Lithuania, Latvia, Estonia, Kazakhstan, Georgia, Uzbekistan, Azerbaijan, Armenia, Kirgizia, and Tadjikistan.
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.
Information about North American area codes, featuring changes, historical data and area code map. Detailed information on overlays and splits.
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.
Databases of active NPA NXX combinations, telephone area codes, exchanges, and central office prefixes within the United States, Canada, and the Caribbean.
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.
Returns area information, map, BT charge information, and nearby exchange names for telephone numbers, access/short codes, or the name of a location.
Provides a list of towns and cities covered by each US area code including overlays and splits.
Contains world telephone codes and time zone information. Search by city, country or number.
Lists and links to current international dialing codes and area codes with formatting guides and provides information on recent and historical changes.
Contains all area codes in the United States. Search by city or phone number.
Databases of active NPA NXX combinations, telephone area codes, exchanges, and central office prefixes within the United States, Canada, and the Caribbean.
Provides fixed-line telephone area codes in the Republic of Ireland.
Listing of North American area codes. Includes approximate number of cellular phone numbers.
Provides a numerical list of North American area codes. Includes region, description and timezone.
Database of area codes across North America. Includes an interactive area code map and list of cities within each code.
International and national direct dialing prefixes and instructions.
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.
Calling guide for United States and Canadian residents listing international country and city codes, phone books and time zones.
Enter the 3-digit prefix or the city name to find an area code.
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.
Provides a list of towns and cities covered by each US area code including overlays and splits.
Contains world telephone codes and time zone information. Search by city, country or number.
Information about North American area codes, featuring changes, historical data and area code map. Detailed information on overlays and splits.
Returns area information, map, BT charge information, and nearby exchange names for telephone numbers, access/short codes, or the name of a location.
Lists and links to current international dialing codes and area codes with formatting guides and provides information on recent and historical changes.
Listing of international dialing codes and area codes with instructions.
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.
Includes all cities of Russia, Ukraine, Belorussia, Moldova, Lithuania, Latvia, Estonia, Kazakhstan, Georgia, Uzbekistan, Azerbaijan, Armenia, Kirgizia, and Tadjikistan.
