457 area code
Shreveport area, Central Time.Area code 457 covers Shreveport, Monroe, Alexandria and 115 more places in Louisiana, on Central Time. 318 covers the same area.
Right now in Shreveport
Central Time (CST, UTC-6; CDT, UTC-5 in summer)
Calling hours: Mon to Sat, 8 AM to 8 PM · Sun, no calls (Louisiana law)
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Where 457 numbers come from
Numbers are issued by rate center, a billing area named for its main town. 457 covers 118, but it's new and has barely been issued yet, so these are ranked by the numbers its overlay already holds.
Shreveport, Monroe, Alexandria, Ruston, Natchitoches, Minden, Bastrop, Marksville, Oakdale, Winnfield, Rayville, Winnsboro + 106 more
Share of exchanges (blocks of 10,000 numbers). Source: NANPA rate center and exchange reports, November 10, 2026
When can you call a 457 number?
Sales calls to homes and cell phones have legal hours, set by Louisiana law. Hold every 457 number to them, since you can't tell a work line from a personal cell.
What applies to 457Mon to Sat, 8 AM to 8 PM · Sun, no calls
- Federal (TCPA and FTC rule)Every day, 8 AM to 9 PMCalls to residential and mobile numbers. Most calls to businesses are exempt from the FTC's rule.47 CFR 64.1200(c)(1); 16 CFR 310.4(c) (opens in a new tab)
- Louisiana lawMon to Sat, 8 AM to 8 PM · Sun, no callsNo calls on legal holidays either, which the tool doesn't track.LPSC General Order R-35852 (Mar. 10, 2021), §V(A)(2) (opens in a new tab)
Local time comes from the area code, not from where the person is today. Mobiles keep their number when they move. Calling hours here are a guide, not legal advice. Every state's calling hours, with sources
457 and 318
457 went into service on September 25, 2025. 457 and 318 cover the same area, so new numbers can get either code and neighbors can have different area codes. 457 holds 0% of the area's exchanges; 318 holds the most. Local calls take all 10 digits.
- 1957318 overlay
- 2025457 starts
Source: NANPA area code database
Other Louisiana area codes
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457 area code FAQ
What area code is 457?
457 is a Louisiana area code for Shreveport, Monroe, Alexandria, Ruston and 114 more places.
What time zone is the 457 area code in?
Central Time (CST, UTC-6; CDT, UTC-5 in summer).
Is 318 the same as 457?
Same area, different code. 457 and 318 cover the same area (an overlay), so new numbers can get any of them and local calls take all 10 digits.
What are the calling hours for 457 numbers?
Mon to Sat, 8 AM to 8 PM · Sun, no calls, local time, under Louisiana law.
When did the 457 area code start?
On September 25, 2025.
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