Area code 531 is an overlay for 402 and serves eastern Nebraska, including Omaha and Lincoln. Introduced in 2011, 531 was created to accommodate growing demand in Nebraska’s most populous region. The area includes the state’s political and economic hubs, as well as a strong base in finance, technology, education, and agriculture. Ten-digit dialing is required across the region. While newer, area code 531 has become a key part of Nebraska’s telecommunications identity, representing its blend of tradition, innovation, and steady growth in the heartland.