Zip Area Code

Area code 557

Area code 557 is a Missouri area code, in service since August 12, 2022.

It was added as an overlay on 314: both codes serve the same area, so neighbors can have numbers in either one.

Local calls are dialed with ten digits; dialing 1 plus ten digits also works.

It is in the Central Time zone.

State
Missouri
In service since
August 12, 2022
Overlays
314
Local dialing
ten digits; dialing 1 plus ten digits also works
Time zone
Central Time
ZIP codes
52

Map

Map of the 557 area codeThe shaded area shows where 557 numbers are rated, with the neighboring area codes outlined around it.618636Saint LouisKirkwood
Approximate 557 coverage, drawn from U.S. Census ZIP code areas and NANPA rate centers. Dashed lines are state borders.

Main cities in area code 557

Overlays and neighboring area codes

Overlay, serving the same area: 314.

Neighboring area codes: 618, 573, 636.

Counties in area code 557

Towns in area code 557

And 32 more towns: every town in Missouri.

Local numbers in area code 557

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