504 area code — New Orleans, LA geographic

Data: NANPA public reports, current as of July 28, 2026.

Area code 504 is a geographic code serving New Orleans, Louisiana in the Central time zone. It has been in service since January 1, 1947. Keep in mind the code identifies where the number was registered; the person calling may be elsewhere.

The code currently holds 559 working prefixes, held by 38 different carriers. Of these, 370 are pooled prefixes shared by multiple carriers. Numbers are anchored to 5 rate centers — billing localities that fix where each prefix belongs.

As demand grew it in turn gave rise to 225 (1998), 985 (2001).

The current NANPA exhaust forecast is 3Q 2061.

Local calls inside 504 are dialed 10D; 1+10 digit permissible at service provider discretion..

Worth noting: 504 is the oldest area code in Louisiana, in service since 1947.

Use this page to decode where 504 numbers come from — and remember that spoofing means the screen can lie about everything except your own caution.

Largest localities in 504

FAQ

Where is a 504 number from?

504 is assigned to New Orleans and surrounding areas of Louisiana in the Central time zone. The three digits after the area code (the prefix) narrow it down to a rate center.

Is 504 a toll-free number?

No. 504 is a geographic code; calls are billed like any other domestic call. Toll-free codes are 800, 833, 844, 855, 866, 877 and 888.

Will 504 run out of numbers?

NANPA's current forecast projects exhaust in 3Q 2061 — decades of capacity remain.

Why am I getting spam calls from 504 numbers?

Scammers spoof recognizable area codes so calls look local or familiar. A displayed 504 number does not prove the call originated there — see our guide to spotting spoofed calls.