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Where Is 337 Area Code?

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Database Updated: August 7, 2025
Louisiana Phone Number Lookups
Where Is 337 Area Code?

Where is Area Code 337?

Area code 337 is located in the state of Louisiana. It serves a significant portion of the southwestern region of the state, covering various cities, parishes, and regions. Here are some of the major areas included:

  • Lafayette
  • Lake Charles
  • New Iberia
  • Opelousas
  • Crowley
  • Abbeville
  • Eunice
  • Jennings
  • Sulphur
  • DeRidder

For more detailed information about the regions covered by area code 337, you can visit the Louisiana Public Service Commission (LPSC).

Louisiana Public Service Commission (LPSC)
Galvez Building, 602 N 5th St, Baton Rouge, LA 70821
Tel: 225-342-4404 or 225-342-4999
Fax: 225-342-2831 (Fax)

What time zone is 337 area code in the USA?

The 337 area code is situated in the Central Time Zone (CT). This time zone observes Daylight Saving Time, shifting from Central Standard Time (CST) to Central Daylight Time (CDT) during the warmer months. For accurate timekeeping, refer to the National Institute of Standards and Technology.

History of the 337 Area Code

The 337 area code was established in 1999 as a result of a split from the 318 area code. This change was necessitated by the growing demand for new telephone numbers in the region, driven by population growth and the proliferation of mobile devices. The introduction of area code 337 helped to alleviate the strain on the existing numbering system. For more historical details, consult the North American Numbering Plan Administrator (NANPA).

NANPA Mailing Address
One Tower Center Boulevard
Suite 800
East Brunswick, NJ 08816

NANPA Customer Support
Tel: 1-866-623-2282
Email: support@nanpa.com
Fax: 571-363-3838

How Many People Use the 337 Area Code?

The 337 area code serves a population of over 1.2 million people. This figure encompasses the entire region covered by the area code, including all the major cities and parishes. For more demographic information, visit the U.S. Census Bureau.

U.S. Census Bureau
4600 Silver Hill Road, Washington, DC 20233
Tel: 301-763-INFO (4636) or 800-923-8282

Is the 337 Area Code Toll-Free?

The 337 area code is a geographic area code, not a toll-free number. It is designated for a specific region in Louisiana and is used for local calls within that area. Toll-free numbers in the United States typically begin with the prefixes 800, 888, 877, 866, 855, 844, or 833. For more information on toll-free numbers, refer to the Federal Communications Commission.

Federal Communications Commission
45 L Street NE, Washington, DC 20554
Tel: 1-888-CALL FCC (225-5322)
https://www.fcc.gov/

Louisiana Phone Numbers
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