Louisiana telephone area codes
, . The state of Louisiana is served by the following area codes: , which serves the Baton Rouge area and parts of south central Louisiana. , which serves northern Louisiana. Return page area codes ; Gramercy - (Saint James), , Louisiana ; Greensburg - (Saint Helena), , Louisiana ; Greenwell Springs - (East Baton Rouge), Search for louisiana telephone area codes with Ecosia and the ad revenue from your searches helps us green the desert . Ecosia is the search engine that plants trees. The state of Louisiana is served by the following area codes: , which serves the Baton Rouge area and parts of south central Louisiana , which serves northern Louisiana , which serves southwestern Louisiana , which serves the New Orleans area , which serves the sections of southeast. Area Codes for the Largest Cities in Louisiana Alexandria Baton Rouge Bossier City Chalmette Harvey Houma Kenner Lafayette Lake Charles Laplace Marrero Metairie Monroe New Iberia New Orleans Opelousas Ruston Shreveport Slidell Sulphur Terrytown 18 rows · Area Code: Dialing Code: Alexandria: +1 Baton Rouge: +1 . For international dialing codes. The US country code and Louisiana US area code chart below gives you the necessary information for calling American cities.