504 Area Code

Area Code 504 Location: Louisiana

Area code 504 covers the city of New Orleans and its surrounding areas.

Counties Served by Area Code 504:

• Jefferson Parish
• Orleans Parish
• Plaquemines Parish
• St. Bernard Parish

Major Cities in the 504 Service Area:

• New Orleans

Other Cities and Towns:

• Boothville
• Buras
• Pointe à la Hache
• Port Sulphur

Overlay System

Area code 504 is one of several area codes serving Louisiana. Historically, it was the sole area code for the entire state until 1957. Subsequently, area codes 318 (1957), 225 (1998), and 985 (2001) were created to serve other regions. Some areas switched between 504 and 985 and back to 504. Ten-digit dialing became mandatory in this area code by October 24, 2021.

Area Code 504 Location Map

Area code 504 is a general purpose code which was placed in service on January 1, 1947.

504 Area Code Prefixes

Our Louisiana phone number lookup service will analyze the three-digit prefix of any 504 area code phone number and will show which telecommunications company and rate center it was initially assigned to. This prefix code data may help to determine the U.S. carrier, Louisiana geographic region, and local calling area associated with the phone number.

Phone numbers follow the following structure under the North American Numbering Plan:

• NPA- area code (where the number was originally assigned)
• NXX - Central office code that locates the specific neighborhood and identifies the service provider
• XXXX - Subscriber number identifies the individual phone line within that local exchange

Understanding the area code can help you determine if a call is local to your area. However, keep in mind that due to mobile number portability and VoIP services, the caller may be anywhere in the United States, so it’s best to search for the most recent phone number details.

Prefixes by Company

Company	Number of Prefixes
BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	212
SPRINT SPECTRUM, L.P.	65
NEW CINGULAR WIRELESS PCS, LLC - GA	44
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA	37
VOICESTREAM GSM I, LLC	19
COMCAST IP PHONE, LLC	13
LEVEL 3 COMMUNICATIONS, LLC - LA	13
METROPCS, INC.	7
ONVOY, LLC - LA	7
USA MOBILITY WIRELESS, INC.	7
WINDSTREAM NUVOX, INC.	6
BANDWIDTH.COM CLEC, LLC - LA	5
LEVEL 3 TELECOM OF LOUISIANA, LLC - LA	5
US LEC COMMUNICATIONS, INC. - LA	4
AT&T - LOCAL	3
AT&T CORP.	3
NETWORK TELEPHONE CORPORATION - LA	3
AIRUS, INC. - LA	2
DELTACOM, INC. - LA	2
HUNT TELECOMMUNICATIONS, LLC - LA	2
MCIMETRO ACCESS TRANSMISSION SERVICES LLC - LA	2
XFONE USA, INC. - LA	2
CENTURYLINK COMMUNICATIONS, LLC	1
HARBOR COMMUNICATIONS, LLC - LA	1
INTRADO COMMUNICATIONS, LLC	1
NUSO, LLC	1
TELEPORT COMMUNICATIONS AMERICA LA - LLC	1
VONAGE AMERICA LLC	1
YMAX COMMUNICATIONS CORP. - LA	1

Carrier names have been updated from their original FCC assignments to reflect current companies following mergers, acquisitions, and rebranding. Updates were determined using AI-assisted research and may not be accurate or reflect up to date changes. This data is provided without warranties of accuracy or completeness.

Prefixes by Rate Center

Rate Center	Number of Prefixes
NEWORLEANS	367
KENNER	88
LAFITTE	8
JESUITBEND	4
VENICE	2
XXXXXXXXXX	1

Other Louisiana Area Codes

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