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Find more information about country codes, phone codes, and ISO country codes. We

Find the international dialing code or time zone for any country. Online tool will instantly show you ALL telephone prefixes needed to call from one area code to another. Add the tool to your own site for quick access.

How to dial internationally - telephone country codes, area codes... complete resource on international calling.

Visit the Official Vonage Blog to find home phone service tips, international calling & dialing codes, and the latest on Vonage Mobile apps.

This site gives you all information about calling abroad using country codes and ISO country codes. Find cities area codes and telephone country codes.

Area code lookup for all US cities or use the area codes locator to find which city a phone area code belongs to.

Area codes for all of the United States, Canada and the Caribbean with information about overlays and splits. Look up by state or area code.

Locator for telephone area codes in the USA, Canada and some Caribbean Islands; lookup cities in an area code and viceversa - detailed information on all codes including map and time zone/curent time

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World dial code information. Country dial and city area codes for World Dial code widgets for World

Time zones, time differences, distance calculator, US time zones with area codes and other air travel tools and calculations.

AreaCode.org lists US and Canada telephone area codes for reverse area code lookup. Find area code list, area code maps, and cities within an area code.

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Lookup US area codes, international country calling codes and world city