Louisiana area codes: full list with cities and how to dial
Louisiana has roughly 4.6 million residents, and its phone numbers are organized into 6 area codes under the North American Numbering Plan. Louisiana is served by 6 active geographic area codes, anchored by 504 in the New Orleans area. Louisiana has five numbering plan areas; the northern 318 region was overlaid with 457 in 2025. Every Louisiana number is dialed as +1, then the three-digit area code, then a seven-digit local number. With Phonecall you can call any Louisiana landline or mobile straight from your browser. There is no app to install, no SIM, and no subscription. You see the per-minute rate before you dial, billing is by the second, and your first call is free.
Call Louisiana from your browserAll Louisiana area codes
6 active geographic area codes in service across Louisiana.
| Area code | Primary cities and region | Example number |
|---|---|---|
| 504 | New Orleans area | +1 (504) 555-0100 |
| 225 | Baton Rouge and parts of south-central Louisiana | +1 (225) 555-0100 |
| 337 | Southwestern Louisiana including Lafayette and Lake Charles | +1 (337) 555-0100 |
| 985 | Southeastern Louisiana including Houma and the Northshore | +1 (985) 555-0100 |
| 318 | Northern and central Louisiana: Shreveport, Monroe, Alexandria (overlay of 318/457) | +1 (318) 555-0100 |
| 457 | Northern and central Louisiana (overlay of 318) | +1 (457) 555-0100 |
Example numbers use the reserved 555-0100 range and are for illustration only.
How to call Louisiana from abroad
Every Louisiana phone number is part of the +1 North American calling zone. To reach one from outside the United States, dial three parts in order:
- 1. Your exit code, then +1 — the US country code.
- 2. The three-digit area code — for example 504 for the New Orleans area.
- 3. The seven-digit local number.
Example, full international format:
+1 (504) 555-0100
With Phonecall you skip the exit codes entirely. Enter the number in international format and we connect the call from your browser, billed by the second from $0.03/min, with no SIM, no app, and no monthly fee.
Why Louisiana has multiple area codes
Louisiana has five numbering plan areas; the northern 318 region was overlaid with 457 in 2025.
When a region runs low on available numbers, the phone system adds capacity in one of two ways. A split divides the old region geographically and gives part of it a brand-new area code. An overlay keeps the existing code and layers a second one on top of the same area, which is why a single city can have several area codes and why ten-digit dialing becomes the norm. Either way, the number you dial always stays the same length: +1, the area code, then seven digits.
6
active area codes
~4.6 million
residents (approx.)
New Orleans
largest city
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Louisiana area codes: frequently asked questions
What is the main area code for New Orleans?
New Orleans, the largest city in Louisiana, is primarily served by area code 504 (New Orleans area). Louisiana has 6 area codes in total, listed in full above.
How do I dial a Louisiana number from another country?
Dial your international exit code, then +1 (the US country code), then the three-digit Louisiana area code, then the seven-digit local number. With Phonecall you just enter the number in international format and we connect the call from your browser, from $0.03/min.
How many area codes does Louisiana have?
Louisiana currently has 6 active geographic area codes in service. Louisiana has five numbering plan areas; the northern 318 region was overlaid with 457 in 2025.