The 402 area code is a significant part of Nebraska's telecommunications infrastructure, serving the eastern part of the state.

Historical Significance and Geographic Coverage: The 402 area code was one of the original area codes established in 1947 under the North American Numbering Plan. It originally covered the entire state of Nebraska but was later reduced in size. Currently, the 402 area code primarily serves the eastern part of Nebraska, including the state's largest city, Omaha, as well as Lincoln (the state capital), and Norfolk.

Economic and Cultural Importance: The region served by the 402 area code is economically diverse, with significant contributions from agriculture, finance, insurance, telecommunications, and transportation. Omaha is a major commercial hub, home to several Fortune 500 companies. The area is also culturally significant, with various historical sites, cultural institutions, and the University of Nebraska-Lincoln.

Introduction of Overlay Area Code and Ten-Digit Dialing: To address the growing need for additional telephone numbers, the 531 area code was introduced as an overlay for the 402 area code in 2011. With this overlay, ten-digit dialing (area code + phone number) became mandatory for all local calls within the region. This change marked a significant shift in dialing practices and reflects the region's ongoing growth and technological development.


These facts about the 402 area code underscore its crucial role in supporting the telecommunications needs of eastern Nebraska. By accommodating the region's growing and diverse communication requirements, the 402 area code, along with its overlay 531, ensures efficient connectivity for a region known for its dynamic economy and rich cultural landscape.