HEATKEYS

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

This site includes lots of information that is time and date related, such as yearly and monthly calendars, countdown counters and the world clock which shows current time in cities all over the world.

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

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

Quality International Phone Card (Prepaid Phone Cards) with Cheap Calling Rate

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.

Yahoo! Answers is a new way to find and share information. You can ask questions on any topic, get answers from real people, and share your insights and experience.

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AT&T is a leader in telecommunication services, including cell phones, wireless, U-verse, digital TV, high speed internet, DSL, home phone, and bundled services.

Conversion and Calculation Center home page that contains links to our measurement conversion, currency exchange rate, world time zone, reference information, and other pages.

Cut telephone service costs and save your business money with regional, national and international phone service from Granite Telecom - granite telecommunications

American Computer Resources, Inc. International country code directory.

CallFire provides an easy to use and enterprise scalable cloud telephony platform. Full API