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US area code · Louisiana

Area code 504

Where the 504 area code is, its overlay and how to dial a +1 504 number from anywhere.

CoversNew Orleans, LouisianaTime zoneCentral (CT)TypeGeographic
Quick answer

The 504 area code is in New Orleans, Louisiana, United States (Central (CT)). To call from abroad: +1 504 555-0123.

StateLouisiana
Main areaNew Orleans
Time zoneCentral (CT)
TypeGeographic
10-digit dialingRequired
In service since01-Jan-1947

The 504 area code is a geographic North American Numbering Plan (NANP) code covering New Orleans, Louisiana. It has been in service since 01-Jan-1947 and sits in the Central (CT) time zone.

How to dial a 504 number

From abroad+1 504 555-0123
Within the US / Canada1 504 555-0123
Locally (same area)504 555-0123

Cities in the 504 area code

A 504 number is usually in one of these places in Louisiana — 3 counties.

Chalmette Saint BernardHarvey JeffersonKenner JeffersonMarrero JeffersonMetairie JeffersonNew Orleans Jefferson;OrleansTerrytown

Other Louisiana area codes

225318337457985

Frequently asked questions

Where is the 504 area code?

The 504 area code is in New Orleans, Louisiana, United States (Central (CT)).

Do I have to dial 10 digits for 504?

Yes — dial the area code plus the seven-digit number.

How do I call a 504 number from another country?

Dial your exit code (or +), then 1, then 504, then the number: +1 504 555-0123.

Source: NANPA numbering plan. An area code covers a region, not a precise address — a 504 number does not pinpoint a street or ZIP code.

Missed a call from +1 504?

In the 30 days to September 24, 2026, 402 unwanted calls showing a 504 number were reported to the US Federal Trade Commission, 69% of them recorded messages or robocalls. That puts 504 at #243 of 670 area codes reported.

Other197
Calls pretending to be government, businesses, or family and friends78
Medical & prescriptions39
Dropped call or no message29
Before you call back
  • If you do not know anyone in Louisiana, do not call back: a genuine caller will leave a message or send a text.
  • Scammers fake the number shown on caller ID, so a 504 number can hide a caller anywhere in the world.
  • Never give a code received by text or a bank detail to an unknown caller. In the US, calls can be reported at reportfraud.ftc.gov.

Who issues +1 504 numbers

Phone companies hold blocks of numbers in each area code. The main holders in 504:

Bellsouth Telecomm Inc Dba South Central Bell Tel 225Voicestream Gsm I, LLC 81New Cingular Wireless PCS, LLC 48Cellco Partnership Dba Verizon Wireless 38Spok, Inc. 25Onvoy, LLC 23

About 14.9% of the 582 prefixes in use belong to mobile carriers: a 504 number is often a cell phone, and it may have moved to another carrier since.

Sources: FTC Do Not Call reported calls (numbers as reported by consumers, not verified), NANPA central office code assignments.

All US area codes United States +1 Map of area code 504 — cities & rate centres