337 area code — Lafayette, LA geographic
Area code 337 is a geographic code serving Lafayette, Louisiana in the Central time zone. It has been in service since October 11, 1999. Keep in mind the code identifies where the number was registered; the person calling may be elsewhere.
The code currently holds 597 working prefixes, held by 49 different carriers. Of these, 426 are pooled prefixes shared by multiple carriers. Numbers are anchored to 75 rate centers — billing localities that fix where each prefix belongs.
The code was carved out of 318 (1999).
The current NANPA exhaust forecast is 2Q 2053.
Local calls inside 337 are dialed 10D; 1+10 digit permissible at service provider discretion..
Use this page to decode where 337 numbers come from — and remember that spoofing means the screen can lie about everything except your own caution.
Largest localities in 337
| Locality (rate center) | Active prefixes | Also served by |
|---|---|---|
| Lafayette | 128 | — |
| Lake Charles | 80 | — |
| New Iberia | 28 | — |
| Leesville | 22 | — |
| Opelousas | 21 | — |
| Abbeville | 18 | — |
| Sulphur | 15 | — |
| Crowley | 15 | — |
| De Ridder | 13 | — |
| Jennings | 10 | — |
FAQ
Where is a 337 number from?
337 is assigned to Lafayette and surrounding areas of Louisiana in the Central time zone. The three digits after the area code (the prefix) narrow it down to a rate center.
Is 337 a toll-free number?
No. 337 is a geographic code; calls are billed like any other domestic call. Toll-free codes are 800, 833, 844, 855, 866, 877 and 888.
Will 337 run out of numbers?
NANPA's current forecast projects exhaust in 2Q 2053 — decades of capacity remain.
Why am I getting spam calls from 337 numbers?
Scammers spoof recognizable area codes so calls look local or familiar. A displayed 337 number does not prove the call originated there — see our guide to spotting spoofed calls.