Area code 417

Area code 417 serves the southwestern quadrant of Missouri, including the cities of Branson, Carl Junction, Carthage, Joplin, Lebanon, Neosho, Nixa, Ozark, Springfield, and West Plains. Missouri was originally slated to receive only two area codes. 314 served the eastern part of the state from St. Louis to Jefferson City, while 816 was to serve all points west of Jefferson City, including Kansas City and Springfield. In 1951, 816 was reduced to Kansas City and the northwest, while southwest Missouri was assigned 417.

Even with the presence of Springfield, the state's third-largest city, 417 is one of the most sparsely populated area codes in the nation. Despite the growing proliferation of cell phones and smart phones (particularly in and around Springfield), it is projected that a second area code will not be required in southwest Missouri until about 2027.[1]

Prior to October 2021, area code 417 had telephone numbers assigned for the central office code 988. In 2020, 988 was designated nationwide as a dialing code for the National Suicide Prevention Lifeline, which created a conflict for exchanges that permit seven-digit dialing. This area code was therefore scheduled to transition to ten-digit dialing by October 24, 2021.[2]

References
  1. "NPA Exhaustion Projections" (PDF), North American Numbering Plan Administration, 2021.
  2. "Transition to 10-digit dialing (for 988 as 3-digit access to National Suicide Prevention Hotline)" (PDF). North American Numbering Plan Administrator. January 8, 2021. Retrieved March 9, 2021.
Missouri area codes: 314, 417, 573, 636, 660, 816
North: 660, 573
West: 620, 539/918 area code 417 East: 573
South: 479, 870
Kansas area codes: 316, 620, 785, 913
Oklahoma area codes: 405, 539/918, 580
Arkansas area codes: 479, 501, 870


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