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Built on 7th July, 1997 specifically for Wichita Falls and Denton areas, Area code 940 is one of the Texas North American telephone area codes. Major changes of the area code were splitting into area codes 830 and 956 on July 7 of the same year. No area overlay, area code 940 allows seven digit calling and allows ten digit calling outside the area code only.

There are 31 access numbers to choose from and the users must be careful before making a call as to whether it is a local cal or not.

Counties Served by this area code:

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 served by this area code:

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, Lake Dallas, Lindsay, Loving, Megargel, Millsap, Mineral Wells, Mingus, Montague, Muenster, Munday, Myra, Newark, Newcastle, Nocona, O'Brien, 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