All area codes

557 area code

557 area code phone numbers

Browse current phone-number listings in area code 557, associated with Fenton, Kirkwood, Saint Louis. Compare memorable patterns and listed pricing. 34,853 557 numbers are currently available from $49 to $399 (median $49), including 16,950 vanity-word and 3,750 triple-digit numbers.

  • Area code 557 is associated with Missouri
  • Time zone: Central Time
  • Cities describe numbering-plan coverage, not an Exclusive Digits office
  • Delivered by email after payment with the account number and transfer PIN the carrier asks for
  • Portable to Verizon, AT&T, T-Mobile and all major US carriers
FentonKirkwoodSaint Louis

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34,771 matching numbers

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  • 34,771 557 numbers in stock
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Area-code profile

About the 557 area code

Location
St. Louis County, MO, St. Louis city, MO, and Jefferson County, MO
Time zone
Central Time
History
Added in August 2022 as an overlay of 314
Overlays
314 serves the same area as 557
Dialing
Local calls are dialed with 10 digits (1 + 10 digits also works)
Prefixes
98 exchange prefixes in use, held by 21 carriers
Map of the 557 area codeShaded area shows where 557 numbers are rated, with neighboring area codes outlined around it.618636Saint LouisKirkwood
Approximate 557 coverage from U.S. Census ZIP code areas and NANPA rate centers.

Cities and communities in 557

Saint Louis, Fenton, Kirkwood

ZIP codes in the 557 area code

52 ZIP code areas. Area codes follow telephone exchange boundaries rather than ZIP code lines, so ZIP codes near the edge can also be served by a neighboring area code.

St. Louis County, MO (32)

63031, 63033, 63034, 63042, 63044, 63074, 63105, 63114, 63117, 63119, 63121, 63122, 63123, 63124, 63125, 63126, 63127, 63128, 63129, 63130, 63131, 63132, 63133, 63134, 63135, 63136, 63137, 63138, 63140, 63141, 63143, 63144

St. Louis city, MO (19)

63101, 63102, 63103, 63104, 63106, 63107, 63108, 63109, 63110, 63111, 63112, 63113, 63115, 63116, 63118, 63120, 63139, 63147, 63155

Jefferson County, MO (1)

63026

Area codes that share 557’s area

314

Neighboring area codes

618573636

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