The area code 812 is located in Bloomington, Indiana.
Area code 812 serves Bloomington, Indiana, and a wide stretch of southern Indiana, covering the rolling hills south of Indianapolis and many communities along the Ohio River. It connects the college town of Bloomington with river cities, small towns, and rural counties, making it a key hub for local phone numbers in the region. The area is home to Indiana University Bloomington (IU) and reaches natural landmarks like the Hoosier National Forest and Monroe Lake, adding both cultural and outdoor appeal. The 812 service area spans from the Wabash River in the west to the Ohio River in the south and east.
Established: 1947; Overlay: 930 added in 2015; 10-digit dialing required (Sources: NANPA; Indiana Utility Regulatory Commission)
Major cities and towns covered by the 812/930 area codes include:
These cities include well-known spots like IU’s campus and Assembly Hall in Bloomington, the Ohio River communities near Louisville, and the modernist architecture of Columbus. The region also features historic resorts at French Lick and West Baden Springs, drawing visitors year-round.
812 is one of Indiana’s original area codes from 1947 and kept its boundaries for decades before the 930 overlay began in 2015. With the overlay, new phone numbers may use 930, and 10-digit dialing is now standard across the 812/930 region. The area code crosses two time zones—most of 812 is in Eastern Time, while the Evansville area observes Central Time. The Bloomington–Bedford corridor is also known for its limestone industry, a point of pride tied to many notable American buildings.