Enter a phone number, area code, or city and state.

557 Area Code

Major City:St. Louis
Current Time:

History of area code 557

557 was first put in service August 12, 2022. It was created from area code 314.

Where is area code 557

Area code 557 serves St. Louis, MO and the surrounding areas. It is an overlay for area code 314 and serves the same area.

What time zone is area code 557?

The 557 area code is located in the Central timezone. The Central time zone is also known as America/Chicago

area code 557

557 area code map

Top 2 Counties in Area Code 557

CountyTotal Population% of 557% of County
St. Louis, MO998,95483%65%
St. Louis, MO319,29416%100%

Top 50 Cities in Area Code 557

CityTotal Population% of 557% of City
St. Louis, MO319,29416%100%
Florissant, MO52,1583%100%
Oakville, MO36,1434%99%
University City, MO35,3711%100%
Mehlville, MO28,3802%100%
Maryland Heights, MO27,4726%100%
Kirkwood, MO27,5402%99%
Hazelwood, MO25,7034%100%
Webster Groves, MO22,9951%100%
Ferguson, MO21,2032%100%
Affton, MO20,3071%100%
Spanish Lake, MO19,6502%100%
Old Jamestown, MO19,1844%100%
Creve Coeur, MO17,8333%100%
Lemay, MO16,6451%100%
Concord, MO16,4211%100%
Overland, MO16,0621%100%
Clayton, MO15,9391%100%
Jennings, MO14,7121%100%
St. Ann, MO13,0201%100%
Crestwood, MO11,9121%100%
Bridgeton, MO11,5504%100%
Bellefontaine Neighbors, MO10,8601%100%
Town and Country, MO10,8153%93%
Chesterfield, MO47,4842%21%
Berkeley, MO8,9781%100%
Richmond Heights, MO8,6031%100%
Ladue, MO8,5212%100%
Des Peres, MO8,3731%100%
Brentwood, MO8,0550%100%
Maplewood, MO8,0460%100%
Olivette, MO7,7371%100%
Sappington, MO7,5801%100%
Sunset Hills, MO8,4962%88%
Black Jack, MO6,9291%100%
St. John, MO6,5170%100%
Shrewsbury, MO6,2540%100%
Glendale, MO5,9250%100%
Glasgow Village, MO5,4290%100%
Dellwood, MO5,0250%100%
Normandy, MO5,0080%100%
Breckenridge Hills, MO4,7460%100%
Rock Hill, MO4,6350%100%
Northwoods, MO4,2270%100%
Woodson Terrace, MO4,0630%100%
Castle Point, MO3,9620%100%
Frontenac, MO3,4821%100%
Pagedale, MO3,3040%100%
Pine Lawn, MO3,2750%100%
Riverview, MO2,8560%100%

Largest Landline Carriers in area code557


Largest Wireless Carriers in area code557


Prefixes in area code557

PrefixUsagePrimary CityCarrierIntroduced