337 area code
Where the 337 area code is, its overlay and how to dial a +1 337 number from anywhere.
The 337 area code is in Lafayette, Louisiana, United States (Central (CT)). To call from abroad: +1 337 555-0123.
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
+1 337 555-01231 337 555-0123337 555-0123Cities in the 337 area code
A 337 number is usually in one of these places in Louisiana — 4 counties.
Other Louisiana area codes
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.
Number holders in area code 337
Each prefix (the three digits after the area code) is assigned by NANPA to one telephone company. 617 prefixes are in use in 337, shared by 54 companies. The largest holders:
| Company | Prefixes | Share |
|---|---|---|
| Bellsouth Telecomm Inc Dba South Central Bell Tel | 143 | 23% |
| New Cingular Wireless PCS, LLC | 98 | 16% |
| Cellco Partnership Dba Verizon Wireless | 53 | 9% |
| Paetec Itel, LLC | 34 | 6% |
| Brightspeed Of Louisiana, LLC | 33 | 5% |
| Onvoy, LLC | 28 | 5% |
Source: NANPA central office code assignments. A number keeps its original prefix when it is ported to another carrier.
Complaints about 337 numbers
- Reports to the FTC, last 30 days
- 326
- Recorded messages or robocalls
- 67%
- Rank among area codes
- #275 of 670
- Most reported subjects
- Other (142)
- Calls pretending to be government, businesses, or family and friends (59)
- Reducing your debt (credit cards, mortgage, student loans) (38)
Period Aug 26 – Sep 24, 2026. These are the numbers shown on the caller ID of the reported calls; many are spoofed and do not belong to the real caller.
Source: US Federal Trade Commission, Do Not Call reported calls data (daily files).
All US area codes United States +1 Map of area code 337 — cities & rate centres