Area Code

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Area Code

A three-digit code affixed at the beginning of a telephone number in a geographic region. Sometimes, if a place has an exceptionally large number of phone numbers, a single region can have more than one area code. Area codes were introduced in 1951 to allow for direct long-distance dialing.
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The area served by the 619 area code, largely made up of the City of San Diego, includes the southern portion of the City of San Diego, and the adjacent cities of Chula Vista, Coronado, El Cajon, Imperial Beach, La Mesa, Lemon Grove, National City, Santee, and unincorporated areas of San Diego County.
The CPUC has started the process to add the 858 area code to the areas now served by the 619 area code, as the 619 area code is expected to use up its available prefixes by March 2019.
Residents and businesses with telephone numbers within the 415 area code will retain their current telephone number(s) and area code.
In order to accommodate all the new phone lines, Cuba's existing 48 provincial area codes will be consolidated into 14 two-digit codes, one for each province (see Cuba's New Area Codes).
As demand for extra phone numbers for faxes, home computers and wireless phones has boomed, availability of numbers in some area codes dwindled.
TODAY is Big Number Day when telephone area codes and digits across the land change.
The Big Number will affect certain area codes, such as Coventry, as well as mobiles and pagers, special rate and premium rate numbers.
Under the agreement, Phoenix would work to boost the number of prescriptions of those products in specific area codes. Phoenix and Parke-Davis would then share revenues generated by those increases.
While PhoneDay in April 1995 only involved adding a "1" after the zero in national area codes, Tuesday's move will see local numbers change as well.
by providing the equivalent of country codes, area codes, and regional codes, etc.," he proposes in PNAS.
Area codes were first introduced with STD, or direct dialling, in 1958.
The creation of the NANP in 1947 established 152 geographic and non-geographic area codes for telephone numbers.
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