Area code 557
Area code 557 is a telephone area code in the North American Numbering Plan. It serves Missouri, the United States.
- 557area code
- MOMissouri
- UScountry
- 12-Aug-22in service
How to dial a 557 number
From within the United States and Canada, dial 1, then 557, then the seven-digit number. From another country, dial your international access code, then +1 557 and the seven-digit number.
Area code 557 covers the same territory as 314. When several area codes share one area like this, it is called an overlay.
Other area codes in Missouri
235, 314, 417, 573, 636, 660, 816, 975
Frequently asked questions
Where is area code 557?
Area code 557 serves Missouri, the United States.
What is the country code for a 557 number?
Numbers with North American area codes use the country calling code +1.