Louisiana Area Codes: Complete List With Cities Served
Louisiana is served by 5 area codes. Below is each code with the main cities it serves, plus tips for formatting phone numbers in test data.
Louisiana area code list
| Area code | Main places served |
|---|---|
| 225 | Baton Rouge, Denham Springs, Hammond and Baker |
| 318 | Shreveport, Monroe, Alexandria and Bossier City |
| 337 | Lafayette, Lake Charles, New Iberia and Sulphur |
| 504 | New Orleans, Metairie, Kenner and Gretna |
| 985 | Slidell, Houma, Hammond and Thibodaux |
Place names come from ZIP code records linked to each area code, so they show where a code is most common rather than exact boundaries.
Area codes by major city
| City | Area codes |
|---|---|
| New Orleans | 504, 985 |
| Baton Rouge | 225 |
| Shreveport | 318 |
| Lake Charles | 337 |
| Lafayette | 337 |
| Metairie | 504 |
| Alexandria | 318 |
| Houma | 985 |
| Monroe | 318 |
| Slidell | 504, 985 |
| Bossier City | 318 |
| Covington | 985 |
| Denham Springs | 225 |
| Gretna | 504 |
| Hammond | 225, 985 |
How to format a Louisiana phone number
US numbers have ten digits: the area code, a three-digit exchange and a four-digit line number. A Louisiana number is written as (225) 555-0123 for display, or +12255550123 in E.164 format for storage.
Safe numbers for testing
The range 555-0100 to 555-0199 is reserved for fictional use in every area code. Our generator combines these with real local area codes, so test data looks right without reaching a real person.
Why overlays matter for your forms
With overlays, you cannot guess a city from its area code alone, and people who move keep their numbers. Use area codes for display and formatting, not for location checks.
Create realistic Louisiana addresses for testing, with real cities, counties and ZIP codes.
Generate Louisiana addresses