Where is the 337 area code?

Area code 337 covers Louisiana, on Central Time.

What time zone is area code 337 in?

Numbers in the 337 area code sit in Central Time.

Is 337 a toll-free or scam area code?

No. 337 is a geographic North American Numbering Plan area code assigned to Louisiana. Toll-free numbers use 800, 833, 844, 855, 866, 877 and 888. A call from 337 can still be spoofed, so treat unexpected calls with the usual caution.

Area code lookup

337 area code

Where the 337 area code is, which cities and counties it serves, the local time zone and the overlay codes dialled alongside it.

State: LA
Codes in state: 5
Overlays & neighbours: 4
Time zone: Central Time

Quick answer

Area code 337 is a geographic area code assigned to Louisiana under the North American Numbering Plan. Louisiana observes Central Time, and the state also holds 4 other area codes: 225, 318, 504, 985.

Largest cities in Louisiana

The largest places in Louisiana. Each links to its full local profile: population, income, housing and sales tax.

City	Population
New Orleans city	376,035
Baton Rouge city	223,699
Shreveport city	183,483
Metairie CDP	138,995
Lafayette city	121,537
Lake Charles city	81,679
Kenner city	65,113
Bossier City city	62,832
Monroe city	47,241
Alexandria city	44,566
Prairieville CDP	35,010
Houma city	32,760

All Louisiana cities All Louisiana ZIP codes Louisiana sales tax

Related area codes

Codes that share or border the same calling area.

337 area code FAQ

The questions people ask about this code.

Where is area code 337?

337 is a geographic area code in Louisiana.

What time is it in the 337 area code?

337 observes Central Time.

Is 337 a scam area code?

No — it is a normal geographic code, not a toll-free or premium-rate prefix. Caller ID can be spoofed on any code, so verify unexpected callers before sharing information.

Sources & transparency

North American Numbering Plan Administrator (NANPA) area code assignments — area code to geography mapping and overlay relationships
US Census Bureau, American Community Survey 2019-2023 5-year estimates — city, county and ZIP code geography

Last reviewed August 2026. Figures are published for reference and can change; verify with the source agency before filing or contracting. How we build and check this data.