Area codes 318 and 457

Common card · No. 360110

Area codes 318 and 457 are telephone area codes in the North American Numbering Plan (NANP) for the northern and central parts of the U.S. state of Louisiana. Area code 318 was assigned in 1957 in an area code split of the 504 numbering plan area (NPA) to nearly all of the state west of the Mississippi River, stretching from the Gulf of Mexico north to the border with Arkansas. After a reduction of the numbering plan area in 1999, in which the southern half of 318 received area code 337, the numbering plan area was converted in 2025 to an overlay complex with additional area code 457. The 318/457 numbering plan area includes Shreveport, Bossier City, Monroe, Alexandria, Ruston and other communities in northern and central Louisiana.

Read on Wikipedia · Image Prof611, CC BY-SA 3.0