504 Area Code — New Orleans, LA
Area code 504 serves New Orleans and 3 other cities in Louisiana. Local time follows America/Chicago. It has no overlay codes.
- State
- Louisiana
- Primary city
- New Orleans
- Timezone
- America/Chicago
- In service since
- 1947
- Type
- Geographic
- Overlay codes
- None
Cities Served by 504
The 504 area code covers 4 cities and communities in Louisiana.
- New Orleans
- Metairie
- Kenner
- Marrero
About Area Code 504
Area code 504 is a North American Numbering Plan (NANP) area code that has been in service since 1947. It is administered by NANPA on behalf of the FCC and serves the Louisiana region anchored on New Orleans.
504 is currently a single-coverage geographic area code with no overlays. This means a 7-digit number in this area code is unique within its rate centers, though best-practice is always to dial the full 10-digit number when contacting a 504 line.
Mobile numbers in 504 are portable: a person who moved away from New Orleans may still carry a 504 mobile number on their device. If you receive an unexpected call from a 504 number, run it through the reverse lookup tool above for the most accurate, free identification.
If you live or do business in Louisiana, you may also interact with neighbouring or overlay codes. See the related codes section below to explore the rest of Louisiana.
Other Louisiana Area Codes
Continue exploring the Louisiana numbering plan.
504 Area Code FAQ
Where is area code 504?
Area code 504 is located in Louisiana, primarily serving New Orleans and surrounding cities including Metairie, Kenner, Marrero. The region operates on CT (America/Chicago) time.
What state is 504 area code?
504 is a Louisiana area code. It was put into service in 1947 and has no overlay codes — it covers its geographic area exclusively.
Is 504 a scam area code?
504 is a legitimate North American area code allocated by NANPA to Louisiana. Like any geographic area code, scammers sometimes spoof 504 numbers — judge each call by content (urgent demands, unfamiliar transfers) rather than the area code alone. Run the specific number through our reverse lookup if you're unsure.
What time zone does 504 use?
Area code 504 operates on CT (America/Chicago). Numbers in this area code follow standard Louisiana time-zone rules including any daylight-saving transitions for that region.
Can I look up a specific 504 phone number?
Yes. Use the reverse lookup widget above to enter a full 504 number. NumLocation returns the line type (mobile, landline, VoIP), carrier, rate-center city, and any public listings tied to the number — free.