what area code is 405
Area code 405 serves the U.S. state of Oklahoma. It covers the Oklahoma City Metropolitan Area including cities such as Oklahoma City, Edmond, El Reno, Norman, Stillwater, Shawnee, Chickasha, Tuttle, and Moore.he other three area codes serving Oklahoma are 539 and 918, which cover northeastern Oklahoma (including the city of Tulsa); and 580, which serves western and southern Oklahoma.