Area code 812, Telephone prefix in Southern Indiana, US
Area code 812 serves 38 counties across Southern Indiana and covers major cities such as Evansville, Bloomington, Terre Haute, and Columbus. This telephone network connects these different communities through a single dialing system.
AT&T established area code 812 in 1947 as one of the two original codes for Indiana, serving the southern portion of the state. This division worked alongside area code 317, which covered the northern and central regions.
The region within area code 812 is shaped by manufacturing plants, universities, and businesses that form the backbone of daily working life. These institutions define how communities in Southern Indiana function and connect with one another.
Since 2015, an overlay code 930 requires ten-digit dialing for all calls within this service area. Using the complete phone number is necessary to ensure your call reaches the correct destination.
Despite its location in Indiana, this area code extends beyond state boundaries to include Ellis Park Race Course, a horse racing track situated in Kentucky near Evansville. This unusual reach reveals how communication networks follow practical needs rather than political borders.
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