Area Code 636

The 636 Area Code (or Area Code 636) is located in the state of MO. Area Code 636 is one of the 269 3-digit telephone area codes in the USA. It covers roughly 870 thousand unique phone numbers and 3.47 million individuals near the city of Ballwin

Area Code 636 History

Area code 636 was put into service. Area code 636 was created from a split of area code 314.

Following cities also use area code 636:

Antonia, Augusta, Cedar Hill, Chesterfield, Creve Coeur, Crystal City, Dardenne, De Soto, Defiance, Earth City, Eureka, Fenton, Fletcher, Foley, Foristell, Gray Summit, Harvester, Hawk Point, Herculaneum, High Hill, High Ridge, Hillsboro, House Springs, Imperial, Jonesburg, Ladue, Manchester, Marthasville, Maryland Heights, Maxville, Moscow Mills, New Haven, O Fallon, Old Monroe, Pacific, Pond, Portage Des Sioux, Saint Ann, Saint Charles, Saint Clair, Saint Louis, Saint Peters, St Peters, Troy, Truxton, Union, Valley Park, Warrenton, Washington, Weldon Spring, Wentzville, Winfield, Wright City.

ZIP codes in Area Code 636: