In 1947, American Telephone and Telegraph (AT&T) published the first configuration of proposed numbering plan areas (NPAs) for a new nationwide numbering and toll call routing system. Indiana was divided to receive two area codes. Area code 317 served the northern two-thirds of Indiana, while area code 812 served the southern third. Despite the presence of Evansville, Terre Haute and Bloomington, southern Indiana is not as densely populated as the rest of the state. As a result, this configuration remained in place for more than six decades. 812 is one of the few original area codes, not counting those covering an entire state, that still had its original boundaries.
By 2013, area code 812 was expected to exhaust its supply of central office prefixes in 2015. This prompted area code relief proceedings. On July 31, 2013, it was announced that 812 would be overlaid with area code 930, the state's first overlay.[2] The number shortage was exacerbated by the proliferation of cell phones, particularly in Evansville and the Louisville and Cincinnati suburbs.[3] On March 1, 2014, a six-month permissive dialing period began, during which it was possible to dial calls within the 812 area with seven or ten digits.
Mandatory ten-digit dialing was originally planned for September 6, 2014, with the first 930 numbers to become available in October.[4][5] However, in August, the Indiana Utility Regulatory Commission delayed the implementation of mandatory ten-digit dialing until February 7, 2015, and the assignments of the first 930 numbers until March 7 to provide law enforcement and emergency medical services more time to update their telecommunication equipment.[6][7][8]
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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 area codes of IndianaThe numbering plan area NPA includes Evansville and most of its suburbs the Indiana portions of the Louisville and Cincinnati metropolitan areas and the cities of Bedford Bloomington Columbus Greensburg Jasper Princeton Seymour Terre Haute and Vincennes The NPA also serves a small section of Kentucky located adjacent to Evansville and north of the Ohio River whose most notable landmark is Ellis Park Race Course a Thoroughbred horse racing track 1 Contents 1 History 2 Service area 3 See also 4 References 5 External linksHistory EditIn 1947 American Telephone and Telegraph AT amp T published the first configuration of proposed numbering plan areas NPAs for a new nationwide numbering and toll call routing system Indiana was divided to receive two area codes Area code 317 served the northern two thirds of Indiana while area code 812 served the southern third Despite the presence of Evansville Terre Haute and Bloomington southern Indiana is not as densely populated as the rest of the state As a result this configuration remained in place for more than six decades 812 is one of the few original area codes not counting those covering an entire state that still had its original boundaries By 2013 area code 812 was expected to exhaust its supply of central office prefixes in 2015 This prompted area code relief proceedings On July 31 2013 it was announced that 812 would be overlaid with area code 930 the state s first overlay 2 The number shortage was exacerbated by the proliferation of cell phones particularly in Evansville and the Louisville and Cincinnati suburbs 3 On March 1 2014 a six month permissive dialing period began during which it was possible to dial calls within the 812 area with seven or ten digits Mandatory ten digit dialing was originally planned for September 6 2014 with the first 930 numbers to become available in October 4 5 However in August the Indiana Utility Regulatory Commission delayed the implementation of mandatory ten digit dialing until February 7 2015 and the assignments of the first 930 numbers until March 7 to provide law enforcement and emergency medical services more time to update their telecommunication equipment 6 7 8 Service area EditCounties partial Brown Clay Decatur Franklin Henderson Kentucky Johnson Monroe Owen Rush Shelby Vigo Counties entirely Bartholomew Clark Crawford Daviess Dearborn Dubois Floyd Gibson Greene Harrison Jackson Jefferson Jennings Knox Lawrence Martin Ohio Orange Perry Pike Posey Ripley Scott Spencer Sullivan Switzerland Vanderburgh Warrick Washington CommunitiesThis list is incomplete you can help by adding missing items January 2014 Austin Aurora Batesville Bedford Bicknell Bloomfield Bloomington Boonville Brazil Bright Chandler Charlestown Chrisney Clarksville Columbus Corydon Crandall Crothersville Dale Depauw Darmstadt Edinburgh Elizabeth Ellettsville English Evansville Farmersburg Ferdinand Fort Branch Fredericksburg Georgetown Greensburg Hardinsburg Hatfield Haubstadt Henryville Huntingburg Jasonville Jasper Jeffersonville Lawrenceburg Leavenworth Lincoln City Linton Loogootee Madison Marengo Mauckport Milan Millhousen Milltown Mitchell Morgantown Mount Vernon Nashville New Albany New Harmony New Salisbury Newburgh North Vernon Oakland City Orleans Owensville Paoli Palmyra Patoka Petersburg Poseyville Princeton Ramsey Reo Richland Rising Sun Rockport Salem Santa Claus Scottsburg Sellersburg Seymour Shoals Sullivan Taswell Taylorsville Tell City Terre Haute Vevay Vincennes Washington Worthington Westport YankeetownSee also Edit nbsp Indiana portalList of NANP area codes List of Indiana area codesReferences Edit Ellis Park Racing amp Gaming Home Page Retrieved April 2 2021 https www nationalnanpa com pdf PL 457 pdf NANPA Planning Letter 457 2011 1 NRUF and NPA Exhaust Analysis PDF North American Numbering Plan Administration April 2011 Orr Susan July 31 2013 Say hello to your new area code Southern Indiana 930 Evansville Courier amp Press NPA 930 to Overlay NPA 812 Indiana PDF North American Numbering Plan Administration September 3 2013 White Charlie January 13 2015 10 digit dialing starts Feb 7 in Indiana Indianapolis Star Officials remind southern Indiana about 10 digit dialing changes WLKY January 8 2015 Daudelin Drew February 5 2015 Mandatory 10 Digit Dialing In 812 Area Begins Saturday WFIU External links EditNANPA area code map of Indiana List of exchanges from AreaCodeDownload com 812 Area CodeIndiana area codes 219 260 317 463 574 765 812 930 North 317 765West 217 618 area code 812 930 East 513 859South 270 364 502Illinois area codes 217 224 847 309 312 331 630 618 708 773 779 815 872Kentucky area codes 270 364 502 606 859Ohio area codes 216 330 234 419 567 440 513 614 380 740 220 937 32638 55 N 86 02 W 38 91 N 86 04 W 38 91 86 04 Retrieved from https en wikipedia org w index php title Area codes 812 and 930 amp oldid 1179209491, wikipedia, wiki, book, books, library,
