🇺🇸 457 area code
Area code 457 covers Shreveport, Monroe, Alexandria and Bossier City and the surrounding area in Louisiana. It shares that territory with 318, so the same neighbourhood can have numbers in any of them. Enter a 457 number below for a free check before you call back.
- Location: Shreveport, Louisiana
- Time zone: Central (UTC−6)
- In service since September 25, 2025
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Area code 457 at a glance
- Area code
- 457
- Location
- Louisiana, United States
- Main cities
- Shreveport, Monroe, Alexandria, Bossier City, Natchitoches, Minden
- Time zone
- Central (UTC−6)
- Local time now
- —
- In service since
- September 25, 2025
- Created from
- 318
- Overlay codes
- 318
- Local calls
- Dial 10 digits
- Number format
- (457) 555-0123
- From abroad
- +1 457 555 0123
Cities in the 457 overlay area
- Shreveport
- Monroe
- Alexandria
- Bossier City
- Natchitoches
- Minden
- Ruston
- Bastrop
- Mansfield
- Marksville
Is a 457 call a scam?
An area code tells you where a number was first assigned, not where the caller is. Mobile numbers keep their area code when people move, and internet (VoIP) numbers can be picked in any area code — so a 457 number can be calling from anywhere.
Robocallers exploit that with "neighbor spoofing": showing a 457 number to people in Louisiana because a local-looking call is more likely to be answered. If a 457 call claims to be your bank, the IRS or a delivery company, hang up and call the official number yourself.
About area code 457
457 entered service on September 25, 2025, as an overlay on 318, which had run short of numbers.
It is part of the 318/457 overlay: the codes cover the same area, and a new line there can be given a number in any of them. Two neighbours — or two phones in one household — can have different area codes. That is also why local calls need the full ten digits.
Because 457 overlays the same ground, the cities listed are those of the codes it shares with.
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Area code 457 questions
Sources: NANPA NPA database (11/04/2026) and Google libphonenumber. Area codes show where a number was assigned, not where its owner is today.
Where is area code 457?
Area code 457 is in Louisiana, United States. It covers Shreveport, Monroe, Alexandria, Bossier City, Natchitoches and Minden.
What time zone is area code 457?
457 is in the Central (UTC−6) time zone, and observes daylight saving time.
What area codes overlay 457?
318 serves the same area as 457. Numbers in all of them are local to one another.
When did area code 457 start?
457 entered service on September 25, 2025, created from 318.
How do I find out who called me from 457?
Enter the full number in the lookup at the top of this page. The free check confirms whether the number is valid and shows its carrier, line type and region; a full report adds owner and public-web records where they are available.
Why am I getting calls from area code 457?
If you live in or near Louisiana, they may be genuinely local — or robocalls spoofing a local-looking number. Unknown 457 callers who will not leave a message are best looked up before you call back.
Got a call from 457?
Run the free check first — validity, carrier, line type and region — and unlock the full report only if you need it.