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US area code · Louisiana

Area code 337

Where the 337 area code is, its overlay and how to dial a +1 337 number from anywhere.

CoversLafayette, LouisianaTime zoneCentral (CT)TypeGeographic
Quick answer

The 337 area code is in Lafayette, Louisiana, United States (Central (CT)). To call from abroad: +1 337 555-0123.

StateLouisiana
Main areaLafayette
Time zoneCentral (CT)
TypeGeographic
10-digit dialingRequired
In service since15-Apr-1999

The 337 area code is a geographic North American Numbering Plan (NANP) code covering Lafayette, Louisiana. It has been in service since 15-Apr-1999 and sits in the Central (CT) time zone.

How to dial a 337 number

From abroad+1 337 555-0123
Within the US / Canada1 337 555-0123
Locally (same area)337 555-0123

Cities in the 337 area code

A 337 number is usually in one of these places in Louisiana — 4 counties.

Lafayette LafayetteLake Charles CalcasieuNew Iberia IberiaOpelousas Saint LandrySulphur Calcasieu

Other Louisiana area codes

225318457504985

Frequently asked questions

Where is the 337 area code?

The 337 area code is in Lafayette, Louisiana, United States (Central (CT)).

Do I have to dial 10 digits for 337?

Yes — dial the area code plus the seven-digit number.

How do I call a 337 number from another country?

Dial your exit code (or +), then 1, then 337, then the number: +1 337 555-0123.

Source: NANPA numbering plan. An area code covers a region, not a precise address — a 337 number does not pinpoint a street or ZIP code.

Missed a call from +1 337?

In the 30 days to September 24, 2026, 326 unwanted calls showing a 337 number were reported to the US Federal Trade Commission, 67% of them recorded messages or robocalls. That puts 337 at #275 of 670 area codes reported.

Other142
Calls pretending to be government, businesses, or family and friends59
Reducing your debt (credit cards, mortgage, student loans)38
Medical & prescriptions31
Before you call back
  • If you do not know anyone in Louisiana, do not call back: a genuine caller will leave a message or send a text.
  • Scammers fake the number shown on caller ID, so a 337 number can hide a caller anywhere in the world.
  • Never give a code received by text or a bank detail to an unknown caller. In the US, calls can be reported at reportfraud.ftc.gov.

Who issues +1 337 numbers

Phone companies hold blocks of numbers in each area code. The main holders in 337:

Bellsouth Telecomm Inc Dba South Central Bell Tel 143New Cingular Wireless PCS, LLC 98Cellco Partnership Dba Verizon Wireless 53Paetec Itel, LLC 34Brightspeed Of Louisiana, LLC 33Onvoy, LLC 28

About 24.8% of the 617 prefixes in use belong to mobile carriers: a 337 number is often a cell phone, and it may have moved to another carrier since.

Sources: FTC Do Not Call reported calls (numbers as reported by consumers, not verified), NANPA central office code assignments.

All US area codes United States +1 Map of area code 337 — cities & rate centres