Area code 574
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Prior to 2002, the northern third of Indiana had been served by area code 219 for 54 years. However, by the end of the 20th century, 219 was on the verge of exhaustion. It was decided to implement a three-way split of the 219 territory. As the result of a random drawing, the middle portion of the old 219 territory (South Bend) became 574. The eastern portion (Fort Wayne) became area code 260, while Northwest Indiana retained 219. The area codes split on January 15, 2002, with permissive dialing continuing until June 14, 2002. 
Area code 574 has telephone numbers assigned for the central office code 988. 988 has been designated nationwide as a dialing code for the National Suicide Prevention Lifeline, which creates a conflict for exchanges that permit seven-digit dialing. This area code is therefore scheduled to transition to ten-digit dialing, mandatory after October 24, 2021.
- https://web.archive.org/web/20060822232357/http://www.sbc.com/gen/general?pid=1718. Archived from the original on August 22, 2006. Retrieved August 8, 2006. Missing or empty
|title=(help) SBC information. Accessed May 11, 2006
- "Transition to 10-digit dialing (for 988 as 3-digit access to National Suicide Prevention Hotline)" (PDF). NANPA. January 8, 2021. Retrieved March 9, 2021.
|West: 219||area code 574||East: 260|
|Michigan area codes: 231, 248/947, 269, 313, 517, 586, 616, 734, 810, 906, 989|