{{short description|Area code for Wichita Falls and Denton, Texas, United States}} {{Use mdy dates|date=February 2026}} {{Use American English|date=February 2026}} {{Texas area codes image map|940}} '''Area code 940''' is a telephone area code in the North American Numbering Plan (NANP) for the U.S. state of Texas in the Wichita Falls and Denton areas. It was created on July 7, 1997, in a split from area code 817.
==Service area== Counties: :Archer, Baylor, Childress, Clay, Cooke, Cottle, Denton, Foard, Grayson, Hardeman, Haskell, Jack, Knox, Montague, Palo Pinto, Parker, Stonewall, Throckmorton, Wichita, Wilbarger, Wise, and Young
Towns and cities: :Alvord, Archer City, Argyle, Aubrey, Bellevue, Benjamin, Bluegrove, Bowie, Boyd, Bridgeport, Bryson, Burkburnett, Byers, Cee Vee, Chico, Childress, Chillicothe, Corinth, Crowell, Decatur, Dennis, Denton, Electra, Era, Forestburg, Gainesville, Gordon, Goree, Graford, Graham, Greenwood, Harrold, Haskell, Henrietta, Holliday, Iowa Park, Jacksboro, Jermyn, Justin, Kamay, Knox City, Krum, Lantana, Lakewood Village, Lake Dallas, Lindsay, Little Elm, Loving, Megargel, Millsap, Mineral Wells, Mingus, Montague, Muenster, Munday, Myra, Newark, Newcastle, Nocona, O'Brien, Oak Point, Oklaunion, Old Glory, Olney, Palo Pinto, Paradise, Perrin, Petrolia, Pilot Point, Ponder, Poolville, Quanah, Ringgold, Rochester, Rosston, Rule, Saint Jo, Sanger, Santo, Scotland, Seymour, Sheppard Air Force Base, Slidell, South Bend, Sunset, Tell, Throckmorton, Tioga, Valley View, Vernon, Weinert, Whitt, Wichita Falls, Windthorst and Woodson
==Ten-digit dialing== Prior to October 2021, area code 940 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.<ref name="pl556">{{cite web|url=https://nationalnanpa.com/pdf/PL_556.pdf|date=January 8, 2021|publisher=North American Numbering Plan Administrator |title=Transition to 10-digit dialing (for 988 as 3-digit access to National Suicide Prevention Hotline)|access-date=March 9, 2021}}</ref>
==See also== *List of Texas area codes {{Area_code_footer|Map=TX}}
==References== {{Reflist}}
==External links== * [https://web.archive.org/web/20090609212023/http://www.areacodedownload.com/940/index.html List of exchanges from AreaCodeDownload.com, 940 Area Code]
{{clear}} {{Area code box|State=TX | This= area code 940 | N= 580 | S= 254, 325, area codes 682 and 817 | E= 214/469/945/972, 430/903 | W= 806 | S1=OK}}
{{DEFAULTSORT:Area Code 940}} 940 940 Category:Wichita County, Texas