557 area code
Area code 557 is in Missouri, United States, in the Central time zone. It covers St. Louis, Affton, Ferguson and more.
State / Province
Missouri (MO)
Country
United States
Region
Midwest
Time zone
Central
Current local time
—
Approx. location
38.6495, -90.3231 ↗
How to dial a 557 number
- National format
- (557) 555-0100
- International (E.164)
- +1 557 555 0100
- From abroad
- +1 557 …
Cities & areas in the 557 area code
3 known locations — a selection:
St. Louis
Affton
Ferguson
About area code 557
Area code 557 is one of the North American Numbering Plan (NANP) codes serving Missouri. In the NANP a full number looks like +1 (557) NXX-XXXX: the +1 is the country code for the US and Canada, 557 is the area code, and the remaining seven digits identify the specific line. A call is charged by your own carrier's plan, not by the area code itself.