Area Code: 636
636 Area Code belongs to the state of Missouri. The following cities fall under this area code: Ballwin, Chesterfield, O'fallon, St. Charles, St. Peters, Wildwood. There have been a total of 6841 Numbers for this area code.
636 Area Code belongs to the state of Missouri. The following cities fall under this area code: Ballwin, Chesterfield, O'fallon, St. Charles, St. Peters, Wildwood. There have been a total of 6841 Numbers for this area code.