🇺🇸 United States · Missouri
Area code 557
Area code 557 is a telephone area code in Missouri, United States. Local time is UTC−6 (UTC−5 in summer). Numbers look like (557) 234-5678, or +1 557 234 5678 from abroad.
- State
- Missouri
- Time zone
- Chicago UTC−6 (UTC−5 in summer)
- Local time now
- –
- Dial from abroad
- +1 557
How to dial area code 557
| Calling from | You dial |
|---|---|
| Inside the 557 area | 557 234 5678 (10 digits) |
| Elsewhere in the US & Canada | 1 557 234 5678 |
| Any mobile phone, anywhere | +1 557 234 5678 |
| UK, Europe, India and most countries | 00 1 557 234 5678 |
| Australia | 0011 1 557 234 5678 |
Area code 557: FAQ
Where is area code 557?
Area code 557 is in Missouri, United States.
What time zone is area code 557 in?
Area code 557 is in the America/Chicago time zone (UTC−6 (UTC−5 in summer)).
How do I call a 557 number from outside the US and Canada?
Dial your exit code (00 in most countries, or + on a mobile), then 1, then 557 and the seven-digit number. Example: +1 557 234 5678.
Is a call from area code 557 a scam?
Area code 557 is a regular North American area code, but caller ID can be spoofed: scammers often show local-looking numbers. Do not call back unknown numbers that ask for money or personal data, and check the number with the phone number validator to see whether it is valid and whether it is a mobile, landline or VoIP number.
Phone number API
Check 557 numbers in your app
numlookupapi checks any phone number worldwide in one request and returns validity, line type, carrier, location and every standard format as JSON.
Read the documentation100 free requests every month. No credit card required.
GET https://api.numlookupapi.com/v1/validate/+15572345678
{
"valid": true,
"number": "12069220880",
"local_format": "2069220880",
"international_format": "+12069220880",
"country_prefix": "+1",
"country_code": "US",
"country_name": "United States of America",
"location": "Seattle",
"line_type": "landline",
"e164_format": "+12069220880",
"national_format": "(206) 922-0880"
}