where is 318 area code
Area code 318 is a telephone area code that covers northern and central Louisiana.It was created in 1957 in a split of Louisiana's original area code, 504. Originally, it covered nearly all of the state west of the Mississippi River, stretching from the Gulf of Mexico north to the border with Arkansas.t was created in 1957 in a split of Louisiana's original area code, 504. Originally, it covered nearly all of the state west of the Mississippi River, stretching from the Gulf of Mexico north to the border with Arkansas.