Area code 457 – Louisiana, no numbers issued yet
457 has served Louisiana since 2025, split from 318. No number blocks have been assigned in it yet, so no one currently has a number in this code. It shares its geography with overlay codes 318, so local calls take all ten digits.
Timeline
- 2025 457 goes into service, split from or overlaid on 318.
- 2026 As of 1 November 2026, no number blocks have been assigned in this code.
More about 457
Separate pages for the questions that need their own answer: what time it is there, what the complaint data says, who holds the number blocks, and how the code compares with the one it shares its area with.
Frequently asked about 457
What state is area code 457?
Louisiana. It covers the same area as 318/457.
I got a call from 457 – is it real?
It cannot be a genuine subscriber: NANPA records show no number blocks assigned in 457, so no one has a number in it. A caller ID showing 457 is spoofed.
Do I need to dial 10 digits in 457?
Yes – ten digits for local calls in 457, because it shares its area with another code.
Sources and verification
- NANPA – NPA Database (npa_report.csv), file date 11/01/2026, retrieved Nov 1, 2026
NANPA dialing note for this code: “10D”. Reviewed by the data desk. Spotted an error? Request a correction.