Louisiana Area Codes
Compare 6 in-service area codes assigned to Louisiana. Explore each code’s introduction date, overlays, possible time zones, and public prefix records.
Louisiana numbering at a glance
- In-service area codes
- 6
- Time-zone labels in NANPA data
- Central
- Listed in-service or assigned prefixes
- 2,866 · source dated 2026-09-29
These are numbering assignments. The counts do not represent active phone numbers, current carriers, or a caller’s physical location.
Compare area codes in Louisiana
| Code | Introduced | Other codes in overlay | Time zones | Listed prefixes |
|---|---|---|---|---|
| 225 | 17-Aug-1998 | None listed | Central | 498 |
| 318 | 01-Jan-1957 | 457 | Central | 761 |
| 337 | 11-Oct-1999 | None listed | Central | 599 |
| 457 | 25-Sep-2025 | 318 | Central | — |
| 504 | 01-Jan-1947 | None listed | Central | 562 |
| 985 | 12-Feb-2001 | None listed | Central | 446 |
Source: NANPA NPA database, dated 2026-09-28. Prefix counts: NANPA US assignment report. View official area-code maps.
Overlay groups in Louisiana
Codes in an overlay group can serve the same broad numbering area. A person may keep a number after moving, and the displayed number may be spoofed.
Find a number in Louisiana
Open an area-code page above to check a prefix and possible time zones. You can also search US telephone rate-center names; those names are not exact city coverage.
A code cannot verify the owner of a number. If an unexpected caller asks for money or sensitive information, verify the claim independently.