| City | Area Code | Dialing Code |
|---|---|---|
| Alexandria | 318 | +1 318 |
| Baton Rouge | 225 | +1 225 |
| Bossier City | 318 | +1 318 |
| Chalmette | 504 | +1 504 |
| Harvey | 504 | +1 504 |
| Houma | 985 | +1 985 |
| Kenner | 504 | +1 504 |
| Lafayette | 337 | +1 337 |
| Lake Charles | 337 | +1 337 |
| Laplace | 985 | +1 985 |
| Marrero | 504 | +1 504 |
| Metairie | 504 | +1 504 |
| New Iberia | 337 | +1 337 |
| New Orleans | 504 | +1 504 |
| Opelousas | 337 | +1 337 |
| Ruston | 318 | +1 318 |
| Shreveport | 318 | +1 318 |
| Slidell | 985 | +1 985 |
| Sulphur | 337 | +1 337 |
| Terrytown | 504 | +1 504 |
| West Monroe | 318 | +1 318 |