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Area code 504

Area code 504 New Orleans, Louisiana

Area code 504 is one of the original 1947 area codes, in Louisiana, with numbers assigned in New Orleans, Kenner, Lafitte and 1 more place. It’s 11:10 PM there now.

State
Louisiana6 area codes in Louisiana
Time zone
Central11:10 PM there now
Exchanges
5634 places
Overlay
NoneThe only code for its area
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Where area code 504 is

Numbers in 504 are assigned to 4 places in 3 counties: Orleans Parish, Jefferson Parish and Plaquemines Parish.

New Orleans holds most of them: 77% of the exchanges.

  • New Orleans433
  • Kenner100
  • Lafitte13
  • Venice6

Phone companies in 504

563 blocks of numbers in 504 are held by 37 phone companies. The most belong to AT&T (219), T-Mobile (94) and AT&T Mobility (48).

A mix: about 32% wireless, 43% local phone and cable and 25% other carriers, including internet phone services.

A block’s holder is the company it was first assigned to; numbers can move to other carriers since.

History and overlays

504 has been in service since 1947, when the first North American area codes were set up.

38 new exchanges were assigned since 2021, the latest in September 2026.

Calling 504

It’s 11:10 PM Central time in 504 right now.

From elsewhere in the U.S., dial 1, 504 and the 7-digit number.

Nearby area codes

Louisiana has 6 area codes: 225, 318, 337, 457, 504 and 985.

From the North American Numbering Plan Administrator’s area code and exchange records (10/22/2026) and U.S. Census place and county names. Places and companies are where number blocks were assigned, not where anyone lives or which carrier a number uses today.

Map of the 504 area code

Map of the 504 area code around New Orleans, Kenner and Lafitte, Louisiana.

Interactive map © OpenStreetMap contributors

Cities on the map

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Questions about 504

Where is area code 504?

In Louisiana, covering New Orleans, Kenner and Lafitte and other places across 3 counties.

What time zone is 504 in?

Central time. It was 11:10 PM there when this page loaded.

Is 504 an overlay?

No. 504 is the only area code for its area right now.

Which phone companies have 504 numbers?

37 companies hold blocks; the most belong to AT&T, T-Mobile and AT&T Mobility. About 32% of blocks are wireless.

Is 504 running out of numbers?

Not on record. 38 new exchanges have been assigned since 2021.