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This is a list of telephone area codes of Pennsylvania. In 1947, the American Telephone and Telegraph Company divided Pennsylvania into four numbering plan areas (NPAs) and assigned distinct area codes for each. Since 1995, several relief actions in form of area code splits and overlays have expanded the list of area
The area code was one of the original North American area codes created in 1947, when it was assigned to the entire southwestern corner of the state. [1] On August 17, 2001, the numbering plan area was converted to an overlay complex with area code 878, which also forms an overlay with area code 724, in the surroundings of the 412 service area.
This created an area code enclave in the city of Pittsburgh. Within only two years, both 724 and 412 were nearing exhaustion due to rapid growth of telecommunication services in the Pittsburgh area from proliferation of cell phones and pagers. By this time, overlays had gained more acceptance, and area code 878 was implemented as an overlay ...
Each NPA is identified by one or more numbering plan area codes (NPA codes, or area codes), consisting of three digits that are prefixed to each local telephone number having seven digits. A numbering plan area with multiple area codes is called an overlay. Area codes are also assigned for non-geographic purposes.
NPA Year Current region 212: 1947 New York City: Manhattan only; overlays with 332, 646, and 917 : 315: 1947 Syracuse, Utica, Watertown, and north central New York; overlaid by 680.
Area code 412 had served southwestern Pennsylvania for 41 years since 1947, before area code 724 was created for most of the old 412 territory outside of Pittsburgh in 1998. Bell Atlantic (now part of Verizon ), the main telephone provider in the area, wanted to implement 724 as an overlay to spare residents and businesses the burden of ...
There are nine Fortune 500 companies headquartered in the Pittsburgh metropolitan area. [1] 120 PNC Financial Services (financial) 220 PPG Industries (industrial) 226 Howmet Aerospace (industrial) 245 Wesco International (industrial) 254 Viatris (pharmaceuticals) 310 U.S. Steel (industrial) 330 Alcoa (metals/mining) 362 Dick's Sporting Goods ...
Map of previous proposed split of 814 with 582, showing county lines. When numbering pool exhaustion became a threat in the 2000s, the Pennsylvania Public Utility Commission (PUC) approved a numbering plan split in December 2009, that would have assigned area code 582 to most of the northwestern portion of the territory, including Erie, by 2012. [2]