Lafayette, LA Area Code

Area code serving Lafayette

Lafayette sits in Louisiana, part of the South region and the Central Time zone. Its area code is 337, which covers southwest Louisiana and Acadiana, including Lafayette and Lake Charles. 337 has no overlay today, so every Lafayette landline and mobile number with a local code starts with 337.

337 has served the area since 1999. If the region runs low on numbers, regulators will most likely add an overlay code on top rather than split the area, which would make 10-digit dialing mandatory.

Code	Area served	In service
337	Southwest Louisiana and Acadiana, including Lafayette and Lake Charles	October 11, 1999

Nearby cities sharing this area code

• Lake Charles
• New Iberia
• Opelousas
• Sulphur
• Youngsville
• Crowley
• Broussard
• Abbeville
• Jennings
• Eunice
• Breaux Bridge
• DeRidder
• Ville Platte

Getting a Lafayette phone number

Any new landline, mobile or VoIP number from a local carrier in Lafayette gets the 337 area code. Numbers come from the blocks each carrier holds in the area; a number ported in from elsewhere keeps its original area code, so you may also see out-of-state codes locally.

Dialing in Lafayette

Lafayette is covered by the single area code 337 with no overlay, so some local calls may still connect with seven digits. Dialing all 10 digits (area code + seven-digit number) always works and is the safest habit. From outside the US, dial +1, then the area code and number. See 10-digit dialing and overlay area codes for the background. For every code in Louisiana, visit the Louisiana area codes page.