Area Code 531 Location

Area Code 531 – Omaha, Nebraska

Area code 531 serves Omaha and much of eastern Nebraska as an overlay to longtime area code 402. It covers the same geographic area and supports growing demand for phone numbers from homes, mobile phones, and businesses. Because it’s an overlay, 10‑digit dialing is required across the region. This makes 531 a key part of daily life in Omaha, the state’s largest city and economic hub along the Missouri River.

Major cities and communities in the 402/531 service area include:

• Omaha (Henry Doorly Zoo & Aquarium, Old Market, CHI Health Center)
• Lincoln (Nebraska State Capitol, University of Nebraska–Lincoln)
• Bellevue (near Offutt Air Force Base)
• Fremont
• Norfolk
• Columbus
• South Sioux City
• Papillion and La Vista

Area code 531 shares coverage with Interstate 80’s busy corridor, linking Omaha and Lincoln and supporting commerce, tech, healthcare, and education. Omaha sits on Nebraska’s eastern edge, right on the Iowa border, giving the 531/402 region strong ties to the Midwest. The overlay was introduced to expand number capacity while keeping existing 402 numbers in place, so residents and businesses didn’t have to change their phone numbers. In short, 531 keeps Omaha and its neighboring cities connected without shifting long‑standing local identities.

402 was established in 1947; 308 split from it in 1954. — North American Numbering Plan Administration (NANPA)

Note: Area code 531 covers the same footprint as 402, so both appear across the same eastern Nebraska communities, including Omaha and Lincoln.