The North American Numbering Plan (NANP) is a telephone numbering plan for twenty-five regions in twenty countries, primarily in North America and the Caribbean. This group is historically known as World Zone 1 and has the telephone country code 1. Some North American countries, most notably Mexico, do not participate in the NANP.
The Indianapolis metropolitan area is an 11-county metropolitan area in the U.S. state of Indiana. Its principal cities are Indianapolis, Carmel, and Anderson. Other cities are Fishers, Noblesville, Greenwood, and Lawrence as well as numerous other municipalities surrounding Marion County, which is at the center of the metropolitan area. Located in Central Indiana, it is the largest metropolitan area entirely within Indiana and the seventh largest in the American Midwest.
Area codes 201 and 551 are telephone area codes in the North American Numbering Plan (NANP) in the U.S. State of New Jersey. Area code 201 was the area code assigned to the entire state of New Jersey in 1947, when the North American area code system was formed. After splits in 1956, 1991, and 1997, it is assigned to the northeastern portion of the state, including most of Hudson and Bergen counties, bordering New York City. Major cities in the numbering plan area include Bayonne, Jersey City, Hoboken, Hackensack, Secaucus and Englewood. Area code 551 was added to this numbering plan area in 2001 in formation of an overlay. Area code 201 is also assigned for wireless services in some rate centers in the 973 and 908 numbering plan areas, such as Newark, Morristown, and New Brunswick.
Area codes 415 and 628 are telephone area codes in the North American Numbering Plan (NANP) for the city of San Francisco and its northern suburbs in Marin County, and the northeast corner of San Mateo County in the U.S. state of California. Area code 415 was one of the eighty-six original North American area codes established in 1947, but modified in geographic configuration later. Area code 628 was assigned in 2015 to form an overlay in that numbering plan area in mitigation of central office prefix exhaustion.
Area codes 508 and 774 are telephone area codes in the North American Numbering Plan (NANP) for the U.S. state of Massachusetts. The numbering plan area comprises south-central and most of southeastern Massachusetts. It includes Worcester, Outer south and southwest Greater Boston, as well as Fall River, New Bedford, Cape Cod, Martha's Vineyard, and Nantucket.
Area code 313 is a telephone area code of the North American Numbering Plan serving Detroit and most of its closest suburbs in Wayne County, Michigan. It includes the enclave cities Hamtramck and Highland Park, as well as Allen Park, Dearborn, Dearborn Heights, Ecorse, Inkster, Melvindale, the Grosse Pointe communities, Lincoln Park, Redford, River Rouge, and Taylor north of Goddard Road and east of Holland Road.
Area codes 812 and 930 are telephone area codes in the North American Numbering Plan (NANP) for the southern third of the state of Indiana.
The Purdue University system is a public university system in the U.S. state of Indiana. A land-grant university with nearly 75,000 students across five institutions comprising six physical campuses, a statewide technology program, extension centers in each of Indiana's 92 counties, and continuing education programs. Additionally, there are another ~44,000 students enrolled in an online university. Each university in the system maintains its own faculty and admissions policies which are overseen by the Purdue University Board of Trustees. Purdue's main campus in West Lafayette is the best-known, noted for its highly regarded programs in engineering and adjacent subjects.
Area code 780 is a telephone area code in the North American Numbering Plan (NANP) for the Canadian province of Alberta. The numbering plan area comprises the northern two thirds of the province, including the Edmonton area. The area code was established in 1999 in a split of area code 403, which had served the entire province since the establishment of the original North American area codes in 1947. The numbering plan area is also served by area codes 587, 825, and 368, which form a complex overlay for all of Alberta.
Area code 908 is a telephone area code in the North American Numbering Plan (NANP) in the northern part of the U.S. state of New Jersey. The numbering plan area (NPA) comprises communities in Union County, Somerset County, northern parts of Middlesex County, Hunterdon County, Warren County, and parts of Morris County as well as some cell phones in Monmouth and Ocean Counties.
Area codes 301, 240, and 227 are telephone area codes in the North American Numbering Plan (NANP) for the western part of the U.S. state of Maryland. The numbering plan area (NPA) comprises Maryland's portion of the Greater Washington, D.C. metro area, portions of southern Maryland, along with rural western Maryland. This includes the communities of Cumberland, Frederick, Hagerstown, Gaithersburg, Potomac, Germantown, Bethesda, Rockville, Landover, Silver Spring, and Waldorf.
Area codes 410, 443, and 667 are telephone area codes in the North American Numbering Plan (NANP) for the eastern half of the U.S. state of Maryland. The numbering plan area (NPA) includes the Baltimore metropolitan area and the Eastern Shore. The three area codes are overlay codes for one numbering plan area, among which 410 was the initial area code for the NPA, when it was split from area code 301 in 1991. 443 and 667 found assignment primarily in cellular service and for competitive local exchange carriers, such as Comcast and Cavalier Telephone, when introduced, but have since become universal in carrier availability.
Area codes 317 and 463 are telephone area codes in the North American Numbering Plan (NANP) for Indianapolis and nine surrounding counties in central Indiana. The numbering plan area (NPA) comprises all or parts of Marion, Boone, Hancock, Hamilton, Hendricks, Johnson, Madison, Morgan, and Shelby counties. 317 is the original area code of the NPA, created in 1947, while 463 is an overlay code for the same area that was added in 2016, making ten-digit dialing mandatory for all calls in the region.
Area code 219 is a telephone area code in the North American Numbering Plan for Northwest Indiana, including the state's portion of the Chicago metropolitan area. The numbering plan area includes the cities of Schererville, Chesterton, Lake Station, Lowell, Crown Point, Cedar Lake, Hobart, Whiting, Gary, Hammond, East Chicago, Merrillville, Munster, Griffith, Highland, Portage, Valparaiso, Michigan City, Ogden Dunes, St. John, La Porte, DeMotte, Roselawn, Kouts, Lake Village, and Rensselaer. 219 is largely co-extensive with the Indiana side of the Chicago metropolitan area, of which it includes the Lake, Porter, La Porte, Newton, and Jasper counties. Service is provided by AT&T, Frontier Communications, and Northwestern Indiana Telephone Company.
Area code 810 is a telephone area code in the North American Numbering Plan for the east-central part in the U.S. state of Michigan. The numbering plan area (NPA) comprises the cities of Flint, Lapeer, Port Huron, and the southern portion of the Thumb.
Area code 260 is a telephone area code in the North American Numbering Plan (NANP) for the northeastern part of the U.S. state of Indiana. Cities served include Angola, Auburn, Bluffton, Butler, Columbia City, Decatur, Fort Wayne, Huntington, New Haven, and Wabash.
Area code 574 is a telephone area code in the North American Numbering Plan (NANP) for the northern part of the U.S. state of Indiana. It was created in a three-way area code split from area code 219 in 2002.
Area code 859 is a telephone area code in the North American Numbering Plan (NANP) for the city of Lexington and the central portion of the Commonwealth of Kentucky. It was created in a split from area code 606 in 1999.
The geography of Indiana comprises the physical features of the land and relative location of U.S. State of Indiana. Indiana is in the north-central United States and borders on Lake Michigan. Surrounding states are Michigan to the north and northeast, Illinois to the west, Kentucky to the south, and Ohio to the east. The entire southern boundary is the Ohio River.
