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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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Open source travel guide featuring up-to-date information on attractions, hotels, restaurants, travel tips and more. Free and reliable advice written by Wikitravellers from around the globe.

United States Zip Codes provides a free zip code map and list of zip codes by state. Find zip codes by address, zip codes by city, or zip codes by state and compare shipping rates for USPS, UPS, and FedEx.

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

Mapland add in mapping software works inside Microsoft Excel. Mapland allows you to map your data quickly and easily. Insert your maps into PowerPoint, Word, Photoshop and Illustrator.

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

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Telephone search engine that returns the city, state, and country of any phone number in the world.

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Telephone Area Codes and Area Code Splits. Information about North American Numbering Plan (NANP).