Phone numbers in Opelousas, Louisiana
Opelousas has 21 phone prefixes in area code 337.
Biggest holders: AT&T Mobility, AT&T (local phone), Level 3 (Lumen). This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 38%
- Local phone company 24%
- Internet / business phone carrier 33%
- Phone company 5%
Every prefix in Opelousas
Search the first six digits of a number in this list. If it's here, the number started in Opelousas with the carrier shown. If it isn't, check the Louisiana page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 337-206 | Advanced Tel | Phone company | – |
| 337-284 | Level 3 (Lumen) | Internet / business phone carrier | 2010 |
| 337-290 | AT&T Mobility | Mobile carrier | 2001 |
| 337-308 | AT&T Mobility | Mobile carrier | 2002 |
| 337-323 | Windstream (PAETEC) | Internet / business phone carrier | 2002 |
| 337-331 | Verizon Wireless | Mobile carrier | 2002 |
| 337-351 | AT&T Mobility | Mobile carrier | – |
| 337-381 | Level 3 (Lumen) | Internet / business phone carrier | 2003 |
| 337-407 | AT&T (local phone) | Local phone company | – |
| 337-418 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 337-447 | Level 3 (Lumen) | Internet / business phone carrier | 2002 |
| 337-467 | Verizon Wireless | Mobile carrier | 2009 |
| 337-594 | AT&T (local phone) | Local phone company | – |
| 337-678 | Charter / Spectrum | Internet / business phone carrier | 2006 |
| 337-692 | AT&T Mobility | Mobile carrier | – |
| 337-730 | Onvoy | Internet / business phone carrier | 2023 |
| 337-793 | Verizon Wireless | Mobile carrier | 2005 |
| 337-942 | AT&T (local phone) | Local phone company | – |
| 337-943 | AT&T (local phone) | Local phone company | – |
| 337-945 | AT&T Mobility | Mobile carrier | – |
| 337-948 | AT&T (local phone) | Local phone company | – |
Most prefixes are pooled: the 10,000 numbers in each are handed out in blocks of 1,000 to different carriers, and people can also take their numbers to another carrier. So the carrier shown is where the prefix started, not a guarantee about any one number. Source: NANPA central office code records, 2026-10-10.