Missouri (MO)
Calling Codes
Need to call St. Louis, Kansas City, or Springfield? Access the complete guide to Missouri area codes (314, 816, 417, and more). Make calls to the "Show-Me State" instantly from your browser.
How to Call Missouri
Calling Missouri follows the standard North American Numbering Plan (NANP).
Exit Code
Dial 00 (Europe) or 011 (World) to dial out.
(Use + on mobile/VoIP)
US Code (+1)
Dial +1. This is the country code for the United States, including Missouri.
Area Code
Dial the 3-digit Missouri area code (e.g., 314) followed by the 7-digit number.
Time Zone Alert: Central Time (CT)
Missouri is in the Central Time Zone. When calling from Europe (e.g., London), Missouri is usually 6 hours behind.
Best time to call: 9:00 AM - 5:00 PM MO time.
Missouri Area Codes List
Find the right area code for your destination in Missouri.
| Area Code | Major Cities / Region |
|---|---|
| 314 | St. Louis City & inner suburbs |
| 816 | Kansas City & St. Joseph |
| 417 | Springfield, Joplin, Branson (Southwest) |
| 573 | Columbia, Jefferson City, Cape Girardeau (East/Central) |
| 636 | Chesterfield, St. Charles (West/South St. Louis suburbs) |
| 660 | Sedalia, Kirksville, Maryville (North/West rural) |
Why Use VoIP to
Call Missouri?
Calling the USA from abroad using traditional carriers is expensive. StartACall connects you to Missouri numbers using the internet, ensuring high quality at a fraction of the cost.
- Reach St. Louis & KC businesses instantly
- No international long-distance fees
- Works on any browser (Chrome, Safari, Edge)
- Secure, encrypted connection
Local Presence
Call local businesses in Branson or Columbia without friction.
Global Access
Call from anywhere in the world as if you were in the US.
Private
Your personal number stays private when making web calls.
Fast
WebRTC technology ensures low latency and HD voice.
Frequently Asked Questions
What is the area code for St. Louis?
St. Louis City and the inner suburbs use area code 314. The outer suburbs (West/South) use 636. Across the river in Illinois, the code is 618.
What is the area code for Kansas City, MO?
Kansas City, Missouri uses area code 816. Note that Kansas City, Kansas (across the border) uses area code 913.
Are there any new area codes in Missouri?
Yes, overlay codes are becoming common. For example, 557 is an overlay for 314 (St. Louis), and 975 is an overlay for 816 (KC). Always dial the full 10 digits.
How much does it cost to call Missouri from Europe?
With traditional carriers, it can cost upwards of $1/min. With StartACall, rates start as low as $0.01-$0.02/min because we route calls over the internet.
Ready to call Missouri?
Connect with friends, family, or businesses in the Show-Me State instantly.