Area codes 812 and 930 serve the southern third of the state of Indiana. The area codes cover Evansville and most of its suburbs, as well as the Indiana portions of the Louisville and Cincinnati metropolitan areas. Besides Evansville, other cities in the area code are Bedford, Bloomington, Columbus, Greensburg, Jasper, Princeton, Seymour, Terre Haute, and Vincennes.
The main area code, 812, was one of the original area codes introduced in 1947. 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, making 812 one of the few original area codes (not counting those covering an entire state) that still had its original boundaries.
On July 31, 2013, it was announced that 812 would be overlaid with area code 930, the state's first overlay. The move came because 812 was expected to exhaust in 2015 due to the proliferation of cell phones and pagers, particularly in Evansville and the Louisville and Cincinnati suburbs. The supply of numbers was limited because portions of the Louisville and Cincinnati LATAs spill into the 812 territory, meaning numbers located in Louisville's 502, Cincinnati's 513 and northern Kentucky's 859 are not available for use. On March 1, 2014, a six-month permissive dialing period began, during which it was possible to complete calls within the 812 area with both seven and ten digits. Ten-digit dialing was originally planned to become mandatory in September 2014 with the first 930 numbers to become available in October.
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. Until the implementation of 930, 812 had been one of the few original area codes (not counting single-state area codes) to have never been split or overlaid.
Counties using 812 and 930
Communities using 812 and 930
- "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 & 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.
|Indiana area codes: 219, 260, 317/463, 574, 765, 812/930|
|North: 317, 765|
|West: 217, 618||area code 812/930||East: 513, 859|
|South: 270/364, 502|
|Illinois area codes: 217, 224/847, 309, 312, 331/630, 618, 708, 773, 779/815, 872|
|Kentucky area codes: 270/364, 502, 606, 859|
|Ohio area codes: 216, 220/740, 234/330, 380/614, 419/567, 440, 513, 937|