List of Louisiana area codes

The U.S. state of Louisiana is divided into five geographically distinct numbering plan areas (NPAs) in the North American Numbering Plan (NANP) which are served by a total of six area codes, with one NPA being an overlay of two codes.

Area code	Year created	Parent NPA	Overlay	Numbering plan area
504	1947	–	–	New Orleans area
225	1998	504	–	Baton Rouge area and parts of south central Louisiana
318	1957	504	318/457	northern Louisiana
457	2025	318
337	1999	318	–	southwestern Louisiana
985	2001	504	–	sections of southeast Louisiana which are not within the 504 area code

^[1]

See also

• List of North American Numbering Plan area codes

References

1. "LPSC Provides overlay area code relief for 318 area code" (PDF). Archived from the original (PDF) on 2023-05-09.