The area code 504 is located in Kenner, Louisiana.
Area code 504 serves Kenner, Louisiana, and much of the greater New Orleans metro along the lower Mississippi River and the south shore of Lake Pontchartrain. Kenner sits just west of New Orleans and is a major gateway to the region thanks to the Louis Armstrong New Orleans International Airport (MSY). Phone numbers in the 504 area code connect callers to a historic, coastal urban area known for culture, music, and resilient communities. This code anchors daily life and business across southeast Louisiana.
Major communities and landmarks covered by 504 include:
Established in 1947, 504 was one of the original North American Numbering Plan area codes. Over time, it was reduced by splits that created 225 (Baton Rouge area) in 1998 and 985 (Northshore and bayou parishes) in 2001. Today, 504 primarily serves Orleans Parish, much of Jefferson Parish (including Kenner and Metairie), St. Bernard Parish, and Plaquemines Parish. It remains one of the most recognized Louisiana area codes, closely tied to New Orleans identity.
Helpful to know: 504 is in the Central Time Zone and uses the U.S. country code +1 for international dialing. If you see a 504 phone number, it likely comes from the New Orleans–Kenner area. Kenner’s Rivertown Historic District and its location between the Mississippi River and Lake Pontchartrain add local character to this coastal area. The code is also associated with beloved regional traditions, including Mardi Gras and major sporting events at the Superdome.
Year established: 1947; major splits: 225 (1998) and 985 (2001). Source: North American Numbering Plan Administration (NANPA)