<P> Area code 636 serves east - central Missouri , mainly the metro area of St. Louis excluding the city of St. Louis and most of St. Louis County . Area code 636 includes parts of the community of Chesterfield , Fenton , and all of Washington , Union , De Soto , Troy , St. Charles , Jefferson , and Warren counties . Area code 314 , now assigned to St. Louis and some suburbs , formerly extended to Washington and St. Francois counties . </P>
<P> Area code 636 serves east - central Missouri , mainly the metro area of St. Louis excluding the city of St. Louis and most of St. Louis County . Area code 636 includes parts of the community of Chesterfield , Fenton , and all of Washington , Union , De Soto , Troy , St. Charles , Jefferson , and Warren counties . Area code 314 , now assigned to St. Louis and some suburbs , formerly extended to Washington and St. Francois counties . </P>
where is area code 636 located in usa
where is area code 636 located in usa
east - central Missouri , mainly the metro area of St. Louis excluding the city of St. Louis and most of St. Louis County parts of the community of Chesterfield , Fenton all of Washington , Union , De Soto , Troy , St. Charles , Jefferson , and Warren counties
east - central Missouri , mainly the metro area of St. Louis excluding the city of St. Louis and most of St. Louis County parts of the community of Chesterfield , Fenton all of Washington , Union , De Soto , Troy , St. Charles , Jefferson , and Warren counties