Area Code 504: New Orleans, Louisiana
504 is a telephone area code serving Louisiana, including New Orleans. It is part of the North American Numbering Plan and is dialed with the country code +1.
Numbers beginning with 504 are located in Louisiana, United States (NANP region: Southeast). The code covers New Orleans.
How to Dial Area Code 504
| Calling from | What to dial |
|---|---|
| Anywhere in the US or Canada | 1 504 XXX-XXXX (10-digit dialing: 504 + 7-digit number) |
| Local call inside the same area code | 7-digit number in most areas; 10 digits where an overlay code is active |
| From the UK or Europe | 00 1 504 XXX XXXX |
| From Australia | 0011 1 504 XXX XXXX |
| From a mobile phone anywhere | +1 504 XXX XXXX |
Whatever country you are calling from, the + symbol replaces the exit code. Save the contact as +1 504 XXXXXXX and it will dial correctly from any phone in the world.
Time Zone for Area Code 504
Calls to a 504 number ring in the America/Chicago time zone, standard offset UTC-06:00. Daylight saving time applies here, so the offset moves forward one hour from March to November.
Cities and Communities Served by 504
The following places fall inside the 504 calling area:
Other Area Codes in Louisiana
These codes also serve Louisiana. Area codes are assigned by the North American Numbering Plan Administration (NANPA).
| Area Code | Cities / Coverage |
|---|---|
| 225 | Baton Rouge |
| 318 | Shreveport |
| 337 | Lafayette, Lake Charles |
| 985 | Houma, Slidell |
See all 5 area codes in Louisiana →
Frequently Asked Questions
Where is area code 504?
Area code 504 is in Louisiana, United States. It covers New Orleans.
What time zone is area code 504 in?
Area code 504 rings in the America/Chicago time zone (UTC-06:00 standard).
Do I need to dial 1 before area code 504?
Yes, for a long-distance call inside the US and Canada you dial 1 first, then 504, then the seven-digit number. The 1 is the North American long-distance trunk prefix — it is not the country code. From outside North America you dial your exit code then 1 then 504.
Is area code 504 toll-free?
No. 504 is a standard geographic area code, so normal long-distance rates apply unless your plan includes them. Toll-free NANP codes are 800, 833, 844, 855, 866, 877 and 888.