Area codes 678 and 470

Last updated
Georgia Area Codes 2021.png

Area codes 678 and 470 are telephone area codes in the North American Numbering Plan (NANP) for the U.S. State of Georgia in the Atlanta metropolitan area. Both area codes are assigned in an overlay plan to a combined numbering plan area (NPA) consisting of 404 (Atlanta and its suburbs inside Interstate 285) and 770 (Atlanta suburbs and exurbs outside of 285).

Contents

Telephone numbers in area code 678 were first assigned to customers signing up for new telephone service on January 15, 1998. On September 2, 2001, area code 470, chosen by the Georgia Public Service Commission, was added to the overlay of area codes 404, 770, and 678 [1] Telephone numbers from the NPA were assigned after exhaustion of area code 678.

Although ten-digit dialing was used in the Atlanta area since area code 770 was introduced in 1995, it was not until January 1, 1998, when 678 was implemented, that ten-digit dialing finally became required across the entire metro area. [2]

All central office prefixes of numbering plan area 404 are assigned to service providers, the last having been issued in October 2013. [3] Prefixes 678 and 770 have also all been allocated, leaving only 470 central office codes available, although previously-used numbers are always available for reassignment to new customers. Despite existing for decades before this change, the largest customer using area code 470 is Kennesaw State University in Kennesaw, which was forced to change hundreds of telephone numbers when the Georgia Board of Regents forced schools in the University System of Georgia to implement internal telephone systems, and the FCC failed to make local number portability applicable to businesses and government,[ citation needed ] allowing AT&T to refuse KSU to take its numbers to the new provider. Kennesaw State University opted to use 470-578 (KSU) as their number prefix for the new phone numbers, outside of the normal geographical calling area for Kennesaw; 470-578 numbers are based in Atlanta Northeast [4] and Kennesaw State University is located in the Atlanta Northwest calling area. [5]

The entire metro Atlanta region with area codes 404, 770, 678, and 470, 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. In addition, calls to and from the Atlanta area with area codes 706 and 762, which serve most of north Georgia, are also local calls.

Service area

Area codes 678 and 470 serve the counties of Barrow, Bartow, Butts, Carroll, Cherokee, Clayton, Cobb, Coweta, DeKalb, Douglas, Fayette, Forsyth, Fulton, Gwinnett, Hall, Haralson, Henry, Heard (part with area codes 706 and 762), Lamar, Meriwether (part with area codes 706 and 762), Newton, Oconee, Paulding, Pike, Polk, Rockdale, Spalding, and Walton.

Related Research Articles

The North American Numbering Plan (NANP) is a telephone numbering plan for twenty-five regions in twenty countries, primarily in North America and the Caribbean. This group is historically known as World Zone 1, and has the international calling code 1. Some North American countries, most notably Mexico, do not participate in the NANP.

A telephone numbering plan is a type of numbering scheme used in telecommunication to assign telephone numbers to subscriber telephones or other telephony endpoints. Telephone numbers are the addresses of participants in a telephone network, reachable by a system of destination code routing. Telephone numbering plans are defined in each of the administrative regions of the public switched telephone network (PSTN) and in private telephone networks.

Ten-digit dialing is a telephone dialing procedure in the countries and territories that are members of the North American Numbering Plan (NANP). It is the practice of including the area code of a telephone number when dialing to initiate a telephone call. When necessary, the ten-digit number may be prefixed with the trunk code 1, which is referred to as 1+10-digit dialing or national format.

Seven-digit dialing is a telephone dialing procedure customary in the territories of the North American Numbering Plan, for dialing telephone numbers in the local calling area. The procedure is also sometimes known as local format or network format.

Number pooling is a method of reallocating telephony numbering space in the North American Numbering Plan, primarily in growth areas in the United States.

Area code 404 Telephone area code in Atlanta, Georgia

Area code 404 is a telephone area code in the North American Numbering Plan (NANP) for Atlanta, Georgia and its closest suburbs. This comprises roughly the area encircled by Interstate 285. It is an enclave area code, completely surrounded by area code 770, which serves most of Atlanta's suburbs. Both 404 and 770 are overlaid by area codes 678 and 470.

Area codes 706 and 762 Area codes for northern and west central Georgia, United States

Area codes 706 and 762 are telephone area codes in the North American Numbering Plan (NANP) for the northern and west central parts of Georgia, but excluding metropolitan Atlanta.

Area codes 202 and 771 Area code for Washington, D.C.

Area codes 202 and 771 are telephone area codes in the North American Numbering Plan (NANP) for Washington, D.C..

Area codes 813 and 656 Telephone area code for Tampa, Florida

Area code 813 is an area code in the North American Numbering Plan (NANP) for the city of Tampa, Florida, and surrounding areas such as Zephyrhills and Oldsmar.

Area code 250 is a telephone area code in the North American Numbering Plan (NANP) for the Canadian province of British Columbia outside the Lower Mainland, including Vancouver Island–home to the provincial capital, Victoria–and the province's Interior region. In addition, the numbering plan area extends into the United States community of Hyder, Alaska, located along the Canada–United States border near the town of Stewart. The incumbent local exchange carriers that service the area code are Telus, Northwestel, and CityWest in the city of Prince Rupert.

Area code 770

Area code 770 is a telephone area code in the North American Numbering Plan (NANP) serving all or part of 29 counties in North Georgia, including most of Atlanta's suburbs. It was created in 1995 in a split of numbering plan area (NPA) 404.

Area codes 510 and 341 Area codes covering Oakland and the East Bay of California

Area codes 510 and 341 are telephone area codes in the North American Numbering Plan (NANP) serving much of the East Bay in California. They cover parts of Contra Costa County and western Alameda County, including the city of Oakland, but excluding Dublin, Livermore, Pleasanton, and Sunol.

Area codes 304 and 681 Area codes of West Virginia

Area codes 304 and 681 are telephone area codes in the North American Numbering Plan (NANP) for the entirety of the U.S. state of West Virginia. The numbering plan area was established in October 1947 with area code 304, as one of the eighty-six original North American area codes. Area code 681 was added to the same area in an overlay plan that took effect on March 28, 2009.

Area codes 301 and 240 North American telephone area codes in Maryland

Area codes 301 and 240 are telephone area codes in the North American Numbering Plan (NANP) for the western part of the U.S. state of Maryland. The numbering plan area (NPA) comprises Maryland's portion of the Greater Washington, D.C. metro area, portions of southern Maryland, along with rural western Maryland. This includes the communities of Cumberland, Frederick, Hagerstown, Gaithersburg, Potomac, Bethesda, Rockville, Landover, Silver Spring, and Waldorf.

Area code 513 Area code in southwest Ohio, US

Area code 513 is a telephone area code in the North American Numbering Plan (NANP) for the southwest of the U.S. state of Ohio, including Cincinnati and surrounding cities, such as Forest Park, Hamilton, Lebanon, West Chester, Mason, Maineville, Middletown, Milford, Norwood, Oxford, Harrison, Cleves, Miamitown, and Trenton.

Area codes 303 and 720 Colorado telephone area codes

Area codes 303, 720 and 983 are telephone area codes in the North American Numbering Plan for the north-central portion of the U.S. state of Colorado. The numbering plan area comprises Denver and Boulder, as well as their surrounding suburbs, including Lakewood, Littleton, Longmont, Aurora, and Castle Rock. Area code 303 is the original area code, while area codes 720 and 983 were added to form an overlay plan for the area, meaning that the same geographic service area is served by all area codes and that ten-digit dialing is required for all calls made within the service area.

Area code 912 Telephone area code for southeastern Georgia, United States

Area code 912 is a telephone area code in the North American Numbering Plan (NANP) for the southeastern part of the U.S. state of Georgia. The numbering plan area contains Savannah, Richmond Hill, Hinesville, Vidalia, Metter, Reidsville, Homerville, Waycross, Brunswick, Folkston, Douglas, Statesboro, Ludowici, Jesup and Kingsland. The area code was created in 1954 in an area code split from area code 404, which had been assigned to the entire state in 1947.

In the administration of the North American Numbering Plan, central office code protection is a numbering policy for maintaining local seven-digit dialing in communities that extend on both sides of the boundary line between multiple numbering plan areas (NPAs), such as in cross-border towns on state lines. Code protection prevents the use of the same telephone number on both sides by not assigning the same central office code of one NPA in the adjacent NPA.

References

  1. ↑ North American Numbering Plan Administration, NPA 470 To Overlay NPAs 404, 678, and 770, Planning Letter PL-269 (March 28, 2001)
  2. ↑ "North America Numbering Plan Planning Letter" (PDF). Nanpa.com. Retrieved 2012-09-29.
  3. ↑ "No more 404, 678 area codes given in Atlanta". M.ajc.com. Retrieved 11 July 2018.
  4. ↑ Chow, Ray. "Local calling guide: NPA-NXX search". Localcallingguide.com. Retrieved 2017-01-20.
  5. ↑ Chow, Ray. "Local calling guide: Rate centre information". Localcallingguide.com. Retrieved 2017-01-20.
Georgia area codes: 229, 404, 470/678, 478, 706/762, 770, 912
North: 706/762
West: 256/938 678/470 (overlaying 404 and 770)East: 706/762
South: 478, 706/762
Alabama area codes: 205/659, 251, 256/938, 334

Coordinates: 33°45′16″N84°23′23″W / 33.75449°N 84.38966°W / 33.75449; -84.38966

This page is based on this Wikipedia article
Text is available under the CC BY-SA 4.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.