The state of Louisiana, USA is currently served by a total of 5 area codes:
| City | Parish | Area code(s) |
|---|---|---|
| Alexandria | Rapides | 318 |
| Baton Rouge | East Baton Rouge | 225 |
| Bossier City | Bossier | 318 |
| Houma | Terrebonne | 985 |
| Kenner | Jefferson | 504 |
| Lafayette | Lafayette | 337 |
| Lake Charles | Calcasieu | 337 |
| Marrero | Jefferson | 504 |
| Metairie | Jefferson | 504 |
| Monroe | Ouachita | 318 |
| New Orleans | Orleans | 504 |
| Shreveport | Caddo | 318 |