Area Code 573
(314 and 557 and (816 and 975)
Area Code 573 History:
01/07/1996
Area code 573 was officially put into service. Area code 573 was created from a split of area code 314.
Area code 235 was put into service as an all services overlay of area code 573 on March 24, 2024. Ten digit dialing (area code + seven digit number) is necessary in the 235/573 area codes because different homes in the same geographic area can have the same seven digit phone number but each would have a different area code.
Counties in Missouri within area code 573 include:
Audrain County, Bollinger County, Boone County, Butler County, Callaway County, Camden County, Cape Girardeau County, Carter County, Cole County, Crawford County, Dent County, Dunklin County, Franklin County, Gasconade County, Iron County, Jefferson County, Lewis County, Lincoln County, Madison County, Maries County, Marion County, Miller County, Mississippi County, Moniteau County, Monroe County, Montgomery County, Morgan County, New Madrid County, Osage County, Pemiscot County, Perry County, Phelps County, Pike County, Pulaski County, Ralls County, Randolph County, Reynolds County, Ripley County, Saint Francois County, Sainte Genevieve County, Scott County, Shannon County, Shelby County, Stoddard County, Texas County, Washington County, and Wayne County.
Major cities or places in Missouri within area code 573 include:
Area code 573 serves most of southeastern Missouri including the larger cities and communities of Charleston, Columbia, Farmington, Hannibal and Jefferson City, in addition to many smaller communities within the area code 573 service area.
