557 Area Code

St. Louis, Missouri

St. Louis, Missouri is the largest city covered by the 557 Area Code

Current Time

Central Time Zone

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557 Area Code Overview & Map

The 557 area code is a telephone area code in the U.S. state of Missouri. It is an overlay of the 314 area code, which serves St. Louis and most of its inner-ring suburbs in neighboring St. Louis County. The 557 area code was introduced in 2014 to provide more numbers for the region.

When was the 557 Area Code created?

The 557 area code was first put into service in 2022, by the North American Numbering Plan Administration (NANPA). Learn more about the US Area Code System

History

The 557 area code was created from the 314 area code, to meet the growing demand for new telephone numbers in Missouri.

Where is the 557 Area Code located?

The 557 area code serves St. Louis, Missouri and the surrounding areas.

Overlays

The 557 is an overlay for the 314 area code(s), and serves the same area. Learn about overlays

557 Area Code Map

557 Area Code Map

Cities in the 557 Area Code

The 557 area code includes 91 cites in Missouri.

City Population % in Area Code
St. Louis, MO 319,294 100%
Florissant, MO 52,158 100%
Chesterfield, MO 47,484 21%
Oakville, MO 36,143 99%
University City, MO 35,371 100%
Mehlville, MO 28,380 100%
Kirkwood, MO 27,540 99%
Maryland Heights, MO 27,472 100%
Hazelwood, MO 25,703 100%
Webster Groves, MO 22,995 100%
Ferguson, MO 21,203 100%
Affton, MO 20,307 100%
Spanish Lake, MO 19,650 100%
Old Jamestown, MO 19,184 100%
Creve Coeur, MO 17,833 100%
Lemay, MO 16,645 100%
Concord, MO 16,421 100%
Overland, MO 16,062 100%
Clayton, MO 15,939 100%
Jennings, MO 14,712 100%
St. Ann, MO 13,020 100%
Crestwood, MO 11,912 100%
Bridgeton, MO 11,550 100%
Bellefontaine Neighbors, MO 10,860 100%
Town and Country, MO 10,815 93%
Berkeley, MO 8,978 100%
Richmond Heights, MO 8,603 100%
Ladue, MO 8,521 100%
Sunset Hills, MO 8,496 88%
Des Peres, MO 8,373 100%
Brentwood, MO 8,055 100%
Maplewood, MO 8,046 100%
Olivette, MO 7,737 100%
Sappington, MO 7,580 100%
Black Jack, MO 6,929 100%
St. John, MO 6,517 100%
Shrewsbury, MO 6,254 100%
Glendale, MO 5,925 100%
Glasgow Village, MO 5,429 100%
Dellwood, MO 5,025 100%
Normandy, MO 5,008 100%
Breckenridge Hills, MO 4,746 100%
Rock Hill, MO 4,635 100%
Northwoods, MO 4,227 100%
Woodson Terrace, MO 4,063 100%
Castle Point, MO 3,962 100%
Frontenac, MO 3,482 100%
Pagedale, MO 3,304 100%
Pine Lawn, MO 3,275 100%
Riverview, MO 2,856 100%
Bel-Ridge, MO 2,737 100%
Green Park, MO 2,622 100%
Moline Acres, MO 2,442 100%
Wellston, MO 2,313 100%
Marlborough, MO 2,179 100%
Hanley Hills, MO 2,101 100%
Warson Woods, MO 1,962 100%
Vinita Park, MO 1,880 100%
Bel-Nor, MO 1,499 100%
Hillsdale, MO 1,478 100%
Lakeshire, MO 1,432 100%
Velda City, MO 1,420 100%
Oakland, MO 1,381 100%
Charlack, MO 1,363 100%
St. George, MO 1,337 100%
Calverton Park, MO 1,293 100%
Country Club Hills, MO 1,274 100%
Cool Valley, MO 1,196 100%
Velda Village Hills, MO 1,055 100%
Norwood Court, MO 959 100%
Pasadena Hills, MO 930 100%
Grantwood Village, MO 863 100%
Edmundson, MO 834 100%
Flordell Hills, MO 822 100%
Bella Villa, MO 729 100%
Sycamore Hills, MO 668 100%
Greendale, MO 651 100%
Beverly Hills, MO 574 100%
Wilbur Park, MO 471 100%
Crystal Lake Park, MO 470 100%
Pasadena Park, MO 470 100%
Uplands Park, MO 445 100%
Huntleigh, MO 334 100%
Kinloch, MO 298 100%
Westwood, MO 278 100%
Vinita Terrace, MO 277 100%
Bellerive, MO 188 100%
Glen Echo Park, MO 160 100%
Mackenzie, MO 134 100%
Country Life Acres, MO 74 100%
Champ, MO 13 100%

557 Area Code NXX Prefixes

The 557 Area Code (NPA Code) has 15 prefixes (NXX Code). An NXX prefix, also known as a central office code or exchange code, is the three-digit code that follows the area code in a North American telephone number. Learn about NXX Prefixes

Area Code Prefix Usage Carrier Rate Center
557 200 Landline Onvoy, LLC - Mo Ladue
557 201 Landline Teleport Communications America, LLC - Mo Kirkwood
557 202 Landline Comcast Ip Phone, LLC St Louis
557 273 Landline Teleport Communications America, LLC - Mo St Louis
557 362 Landline Teleport Communications America, LLC - Mo St Louis
557 454 Landline Teleport Communications America, LLC - Mo St Louis
557 467 Landline Onvoy, LLC - Mo St Louis
557 500 Landline Onvoy Spectrum, LLC St Louis
557 653 Landline Teleport Communications America, LLC - Mo St Louis
557 747 Landline Teleport Communications America, LLC - Mo St Louis
557 777 Landline Terra Nova Telecom Inc. Crevecoeur
557 888 Landline Terra Nova Telecom Inc. Kirkwood
557 953 Landline Teleport Communications America, LLC - Mo St Louis
557 996 Landline Teleport Communications America, LLC - Mo St Louis
557 999 Landline Wiretap Telecom, LLC. Sappington