All 6 Louisiana area codes
Every active code: tap any card for its full guide, who called, cities and ZIPs, map, spam patterns and local time.
Got a call from a Louisiana number you don’t recognize?Open that code’s guide above for its full prefix lookup. AT&T ActiveArmor® blocks spam automatically, included with AT&T wireless plans.
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Included with AT&T wireless plans. Requires compatible device/service and download of the AT&T ActiveArmor® app. Other terms & restrictions apply. May not detect all threats and may block wanted calls. Some features require Advanced mobile security ($7/mo.). See terms.
See how ActiveArmor® worksIncluded with the free 30-day AT&T Wireless℠ trial- 100GB of data plus 25GB hotspot
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See offer details
Service good for 30 days. Data: Limited to 100GB of data and 25GB of hotspot data. No additional data is available after limit is reached. Video is limited to SD quality. Talk & Text: Includes unlimited talk & text within the U.S. and unlimited text from the U.S. to over 230 countries. Limits: One trial per user. An unlocked, GSM-compatible iOS or Android phone with eSIM capability is required. You’ll receive a trial phone number that belongs to AT&T and is not available to be ported to another carrier or otherwise retained. Trial plan features and details may differ from or be unavailable in other AT&T plans. U.S. only. All terms subject to change at any time.
Louisiana area codes by city
The largest Louisiana communities and the area codes that serve them. Every city links to its local AT&T internet page.
How Louisiana got its codes
Every Louisiana area code, in the order it entered service. Splits carved new regions; added codes overlay existing ones, which is why ten-digit dialing is standard.
| In service | Code | How it arrived |
|---|---|---|
| 1947 | 504 | One of the original area codes of 1947 |
| 1957 | 318 | Original assignment for its region |
| 1998 | 225 | Split from 504 |
| 1999 | 337 | Split from 318 |
| 2001 | 985 | Split from 504 |
Source: NANPA NPA database, July 2026. Regenerated monthly.
Louisiana area code map
Every active Louisiana area code at a glance, anchored to the metro each one serves. Click or tap any region on the map to open that code’s full guide.
How Louisiana’s codes work
How Louisiana splits
Baton Rouge runs on 225, Shreveport on 318, and Lafayette on 337. The other two territories each carry a single code.
One code per territory
No overlays are in service in Louisiana: each color on the map carries exactly one code, so the code on the chip is the whole story.
Reading the map
Each color is one code territory and each chip is that territory’s code. Clicking any region opens its full guide.
Every code links to a full guide.
Who called, cities and ZIPs, maps and spam patterns.
Take the map with youPoster format with every Louisiana area code and a QR code back to this page.↓ Download the printable PDF
Internet, wireless & stores across the state
AT&T home internet in Louisiana
AT&T home internet is available across Louisiana, checked address by address; every area code guide above lists its cities and what’s offered there.
AT&T Fiber: Ltd. avail/areas. Speeds based on wired connection. Actual speeds vary. For 5-GIG, single device wired speed maximum 4.7Gbps. For more info., visit att.com/speed101.
Start with home internet in Louisiana, or pair it with wireless in an internet + wireless bundle.
AT&T wireless in Louisiana
AT&T’s 5G network covers most of Louisiana. ActiveArmor® spam blocking is included with every unlimited plan, your number stays yours when you move between Louisiana codes, and great cell phone deals in Louisiana are a tap away.
AT&T may temporarily slow data speeds if the network is busy. 5G req’s compatible plan & device. Coverage not available everywhere. Learn more at att.com/5Gforyou.
AT&T stores across Louisiana
From the Baton Rouge metro to Alexandria, Lafayette and beyond, walk in for switching, porting, upgrades and hands-on help. Every area code guide lists its nearest stores.
Find stores in: Baton Rouge · Alexandria · Lafayette · Shreveport · New Orleans
