6 area codes assigned to Louisiana · Central Time
1 of Louisiana's area codes share territory with another. Codes in the same row serve the same places, so either can reach a number there — and ten-digit dialling is required throughout.
The remaining 4 codes cover their own area: 225, 337, 504, 985.
Louisiana went from one area code in 1947 to 6 today. A split carves territory off its parent; an overlay sits on top of it, which is why newer codes need ten-digit dialling.
Dates from the NANPA area code report, 09/19/2026.
Louisiana spans 7 LATAs — the regions a call is routed within before it becomes long-haul.
225
Louisiana
Central Time
4,104 blocks · 34 rate centres
318
Louisiana
Central Time
Overlay · with 457
5,875 blocks · 118 rate centres
337
Louisiana
Central Time
4,322 blocks · 75 rate centres
457
Louisiana
Central Time
Overlay · Sep 25, 2025 · with 318
0 blocks · 0 rate centres
504
Louisiana
Central Time
4,240 blocks · 5 rate centres
985
Louisiana
Central Time
3,461 blocks · 45 rate centres
Louisiana has more than one area code in most regions. Enter a city to see which codes serve it, or check a specific number instead.
Louisiana has had 2 area codes activated as an overlay since 2021, sharing territory with an existing code rather than carving out new geography. Local calls in an overlaid region must be dialed with all ten digits. Earlier overlays are not listed here.
See every North American overlayLouisiana is served by 6 area codes in the North American Numbering Plan (NANP): 225, 318, 337, 457, 504, 985. All Louisiana numbers are in the Central Time zone. Click any area code above to see the cities and rate centers it covers, formatted tel: link examples, and to search for available phone numbers.