what area code is 402
Area code 402 is an area code that covers Eastern Nebraska, including Omaha and Lincoln. Area code 402 overlays the area code of 531.Nebraska has area codes of 308, 402, 531.rea code map of the entire U.S. The USA.com website and domain are privately owned and are not operated by or affiliated with any government or municipal authority. Â© 2015 World Media Group, LLC.