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The entire metro Atlanta region with area codes 404, 770, 678, 470, and 943 is a local calling area, one of the largest in the United States, without long-distance charges for calls between area codes. All calls in the area are dialed with ten digits.
This page was last edited on 25 January 2022, at 06:16 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.
Area code 670; Area code 671; Area codes 678, 470, and 943; Area code 679; Area code 680; Area code 682; Area code 684; Area code 700; Area code 701; Area codes 702 and 725; Area code 703; Area codes 704 and 980; Area codes 706 and 762; Area codes 707 and 369; Area codes 708 and 464; Area code 710; Area code 712; Area code 713; Area codes 715 ...
Area codes are also assigned for non-geographic purposes. The rules for numbering NPAs do not permit the digits 0 and 1 in the leading position. [1] Area codes with two identical trailing digits are easily recognizable codes (ERC). NPAs with 9 in the second position are reserved for future format expansion.
When it changed to 10 digit dialing people started having to remember area codes all the time. When 770 came out people started writing 7/ as short hand for the area code, so when 678 was introduced it was treated the same way with a 6/. Atlanta had 10 digit dialing before the rest of the country so it's probably not common in most other areas.
In September 2005, 762 was overlaid to all of the existing area code 706, despite the fact that it has been physically split into two separate and disconnected sections since it was created in 1992. [2] Georgia is served by ten area codes. The newest area code, 943, went into service in March 2022 as another area code for the Atlanta area. [3]
The largest telephone numbering plan in North American is the North American Numbering Plan (NANP), serving 25 regions or countries. Other countries maintain an autonomous numbering plan with distinct country codes within the international E.164 specifications by the International Telecommunication Union.
Each NPA was identified by a three-digit area code used as a prefix to each local telephone number. The United States received seventy-seven area codes, and Canada nine. The initial system of numbering plan areas and area codes was expanded rapidly during the ensuing decades, and established the North American Numbering Plan (NANP).