636 Area Code
St. Charles, MO and 25 other locations · United States
Country code +1 · ISO US
Example 636 Number
A sample number from this area code, formatted three ways.
| National | International | E.164 |
|---|---|---|
| (636) 555-0123 | +1 636-555-0123 | +16365550123 |
Try it now
Pre-filled with a 636 sample number. Edit it and click "Try It" to see the parsed result.
Locations
Google's libphonenumber lists these locations for the 636 area code.
- · St. Charles, MO
- · O'Fallon, MO
- · Chesterfield, MO
- · Fenton, MO
- · St. Peters, MO
- · Wentzville, MO
- · Festus, MO
- · Ballwin, MO
- · Arnold, MO
- · Eureka, MO
- · Union, MO
- · Pevely, MO
- · Troy, MO
- · Hillsboro, MO
- · High Ridge, MO
- · De Soto, MO
- · Cedar Hill, MO
- · Pacific, MO
- · Washington, MO
- · Wright City, MO
- · House Springs, MO
- · Saint Clair, MO
- · Lake Saint Louis, MO
- · Warrenton, MO
- · Marthasville, MO
- · Missouri
How to Dial United States Numbers
From abroad
Dial +1 followed by the national number, dropping any leading 1.
Within United States
Dial 1 before the local number to make a domestic call.
Dialing out of United States
Dial 011 followed by the destination country code and number.
Nearby United States Area Codes
Frequently Asked Questions
Where is the 636 area code?
└ The 636 area code covers St. Charles, MO in United States.
What timezone is the 636 area code in?
└ Numbers in the 636 area code are in the America/Chicago timezone.
How do I dial a 636 number?
└ From abroad, dial +1 636 followed by the local number. Within United States, dial 1636 before the local number.