ST. LOUIS — A new area code, 557, has been activated in the St. Louis area for new customers. The St. Louis area has been home to the 314 area code and now has a second one added to the list. The 314 ...

ST. LOUIS — The St. Louis area will be the home of a new area code later this year, the 557 area code. The existing 314 area code is currently used for St. Louis, Overland, Bridgeton, Florissant, ...

*Refers to the latest 2 years of stltoday.com stories. Cancel anytime. ST. LOUIS — St. Louis’ monogamous run with the 314 area code is coming to an end, Missouri officials announced Tuesday. Soon, the ...