State
Area Code 557
St. Louis, Ladue, Kirkwood, Missouri
Local time now
…
Time zone
Central
Main cities
St. Louis, Ladue, Kirkwood, Creve Coeur, Mehlville, Sappington
Overlays
In service since
2022
When you can make sales calls to 557 numbers
| Every day | 8 AM – 9 PM (federal rule) |
In the called person's local time. Guidance, not legal advice.
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Other area codes in Missouri
Questions about area code 557
- Where is area code 557?
- Area code 557 is in Missouri, covering St. Louis, Ladue, Kirkwood, Creve Coeur.
- What time zone is area code 557?
- Central time.
- When can telemarketers call a 557 number?
- Federal rules allow sales calls from 8 AM to 9 PM local time.
- Is 557 a toll-free number?
- No. 557 is a regular area code for Missouri. Toll-free codes are 800, 833, 844, 855, 866, 877 and 888.