Area code 878
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878 is an overlay area code for area codes 412 and 724 in Southwestern Pennsylvania centered in Pittsburgh. It came into effect on August 17, 2001, making 10-digit dialing mandatory in the 412 and 724 areas of Western Pennsylvania.
As of July 2009, there are no numbers assigned to area code 878, as number-conserving policies put into place at the time of its introduction have so far been successful. On February 15, 2013, the Pennsylvania Public Utility Commission announced it would start to issue 878 numbers in the 724 area code sometime within the next year, as 724 is nearly exhausted.[1] At the moment, the 412 area code will not be issued numbers with the 878 area code until it gets close to exhaustion as well.[2]
See also
- "Area Code Maps". NANPA.
| North: 814 | ||
| West: 234/330, 304/681 | Area code 878 (overlays 412 and 724) | East: 814 |
| South: 304/681 | ||
| Ohio area codes: 216, 330/234, 419/567, 440/436, 513/283, 614/380, 740/220, 937/326 | ||
| West Virginia area codes: 304/681 | ||
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