Area Codes 678 and 470
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Area Codes 678 and 470

Area codes 678 and 470 are North American Numbering Plan area codes assigned to metropolitan Atlanta, Georgia. Both area codes are overlay codes for the two main area codes in the area, 404 (Atlanta and its suburbs inside Interstate 285) and 770 (Atlanta suburbs and exurbs outside 285).

Numbers in area code 678 were first assigned to customers signing up for new telephone service on January 15, 1998; 470 was activated on February 26, 2010.[1] Although ten-digit dialing had been 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 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,[] 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-404, 770, and 678/470-is a local calling area, one of the largest in the United States. No long-distance charges are applied for calls from one portion of the area to another, regardless of the area codes; calls can complete with just ten digits. Portions of area codes 706 and 762, which serve most of north Georgia outside the Atlanta metro, are local calls to and from the Atlanta area as well.

Counties served

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, Heard (part with area codes 706 and 762), Henry, Lamar, Meriwether (part with area codes 706 and 762), Newton, Oconee, Paulding, Pike, Polk, Rockdale, Spalding, and Walton.


  1. ^ "NANP Administration System". 2010-02-26. Archived from the original on 2012-02-24. Retrieved .
  2. ^ "North America Numbering Plan Planning Letter" (PDF). Retrieved .
  3. ^ "No more 404, 678 area codes given in Atlanta". Retrieved 2018.
  4. ^ Chow, Ray. "Local calling guide: NPA-NXX search". Retrieved .
  5. ^ Chow, Ray. "Local calling guide: Rate centre information". Retrieved .

External links

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, 251, 256/938, 334

Coordinates: 33°45?16?N 84°23?23?W / 33.75449°N 84.38966°W / 33.75449; -84.38966

  This article uses material from the Wikipedia page available here. It is released under the Creative Commons Attribution-Share-Alike License 3.0.



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