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Interactive map of the numbering plan areas of the Commonwealth of Pennsylvania (blue). 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.
The initial area codes were created in 1947 as routing codes for operator-assisted calls. Quebec and Ontario were the only provinces that received multiple area codes. Quebec was split between area codes 514 and 418. Area code 514 was originally assigned to the entire western half of Quebec from the Canada–US border to the Hudson Strait. The ...
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.
This page was last edited on 22 January 2023, at 16:16 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.
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Overlay area codes Location Notes Added Base 557 314 St. Louis, Missouri (communities such as, but not limited to, St. Louis, Overland, Bridgeton, Florissant, Webster Groves, Creve Coeur, Kirkwood and Sappington) Initial overlay area code plan was announced October 24, 2000.
Indiana is a borough in and the county seat of Indiana County, Pennsylvania, United States. [3] The population was 14,044 at the 2020 census. [4] It is the principal city of the Indiana, Pennsylvania micropolitan area, about 46 miles (74 km) northeast of Pittsburgh. [5]
Indiana Township is a township in Allegheny County, Pennsylvania, and a Pittsburgh suburb located in the United States. It contains the communities of Rural Ridge, Dorseyville, and Indianola. The population was 7,255 at the 2020 census. [2] The township was named after the Indiana Territory. [3]