HEATKEYS

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

State information resource links to state homepage, symbols, flags, maps, constitutions, representitives, songs, birds, flowers, trees

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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.

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

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.

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.

NPA NXX Area Code Database List & demographics, Directory of Area Codes NPA NXX, Exchanges, CLLi, Lat/Lon, Carrier, Landline/Cell indicator.

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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Denver Yellow Pages ...find local info, white pages, demographics and more using Areaconnect Denver