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Area code 412. Coordinates: 40.488°N 79.892°W. Pennsylvania (blue) with numbering plan area 412 shown in red. Area code 412 is a telephone area code in the North American Numbering Plan (NANP) for the Commonwealth of Pennsylvania. The numbering plan area (NPA) comprises the city of Pittsburgh, most of surrounding Allegheny County, and small ...
Area code 440 was established on August 16, 1997, in a three-way split of area code 216, one of the original North American area codes, to provide relief from central office prefix exhaustion from increasing popularity of cellular phones and population pressure.
Area code 724 is a telephone area code in the North American Numbering Plan for the Commonwealth of Pennsylvania in western and southwestern Pennsylvania, including a portion of the suburbs of Pittsburgh. It was created in an area code split of area code 412 on February 1, 1998, which made the 412 numbering plan area (NPA) an enclave for the ...
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 ...
1993: split to create 905. 2001: overlaid by 647. 2013: overlaid by 437. 2025: overlaid by 942. area code 387 is reserved as a fifth code for the region. 417. Missouri ( Springfield, Joplin, Branson, Lamar, Lebanon, and most of southwestern Missouri) 1950. created from parts of the area codes 314 and 816.
Numbering plan areas and area codes of Texas (tan). This is a list of area codes in the U.S. state of Texas. The date of establishment of each area code is indicated in parentheses: 210: San Antonio area; overlays with 726 (November 1, 1992) 214: Dallas area, overlays with 469, 972, and 945 (October 1947)
Numbering plan areas and area codes since May 2001 September 1997 – May 2001 July 1988 – September 1997 October 1947 – July 1988. Massachusetts is divided into five distinct numbering plan areas (NPAs), which are served by nine area codes in the North American Numbering Plan (NANP), organized as four overlay complexes and a single-area code NPA.
With the GPSC reversing course a third time, 470 became the second area code to overlay Atlanta in September 2001, but remained unused until 2010. In September 2005, 762 was overlaid to all of the existing area code 706, despite the fact that it has been physically split into two separate and disconnected sections since it was created in 1992.