314
St. Louis's Original Prefix After Two Splits and an Overlay
See exactly which St. Louis neighborhoods the 314 area code covers today, how it shrank through two splits, and what the 557 overlay changed about dialing.
MO · 5 Area Codes
Missouri
Area Codes
Missouri's economy leans on logistics and agriculture, centered around Kansas City, St. Louis, and Springfield. Get a local virtual phone number with any Missouri area code.
5 area codes
Original code 314 · 1947
Capital: Jefferson City
Carrier-grade network
// Why MO Virtual Numbers
Why businesses choose a Missouri virtual number
A local Missouri number shows callers which part of the state you serve.
1947
314 first assigned
314 came first, in 1947
314 was Missouri's original area code, assigned in 1947. The newest, 636, arrived in 1999. Each of the 5 codes below maps to its own part of the state, so the code you pick shows which region you serve.
01 — Missouri at a Glance
Missouri, by the numbers.
Missouri began in 1947 with two codes: 314 for eastern Missouri (St. Louis) and 816 for western Missouri (Kansas City). In 1951, 417 split off for Springfield and the Ozarks.
That three-code map held for decades. In 1997, 660 split from 816 to cover northern Missouri outside the Kansas City metro.
St. Louis's outer suburbs got their own code, 636, split from 314 in 1999. 417 remains unsplit to this day.
Did you know?
Area code 417, created in 1951 to serve Springfield and the Ozarks, has never been split — one of the longest-standing untouched boundaries on Missouri's numbering map.
// 5 area codes
Missouri Virtual Phone Numbers
Select any area code to get a local virtual number for that region of Missouri.
417
The Missouri Ozarks Prefix That Never Split
See every southwest Missouri city the 417 area code covers, why it's one of the few original prefixes that never needed a split, and how to get a local number.
636
The Outer St. Louis Suburbs 314 Left Behind
See every St. Louis-area suburb the 636 area code covers, why it split from 314 in 1999, and how to activate a local Missouri number in minutes.
660
Rural North & West Missouri Explained
660 covers rural northern and west-central Missouri: Sedalia, Warrensburg, Kirksville, Marshall, Moberly, Chillicothe and Maryville. How it was carved out of 816 in 1997 and why it still needs 10-digit dialing.
816
Kansas City's Complete Local Number Guide
The 816 area code covers Kansas City and northwestern Missouri. Learn its 1947 history, the 975 overlay, and how to get an 816 number for your business.
// Get Started
Get a Missouri number in 3 steps
From choosing a code to setting up call routing.
- 01Step 01
Choose a MO area code
Browse the Missouri area codes above and pick the region that best serves your customers.
- 02Step 02
Select your number
Choose from the numbers available in your selected area code.
- 03Step 03
Set up routing
Configure call routing, business hours, and voicemail from your Rozper dashboard for your Missouri number.
Frequently Asked
Missouri number questions answered.
Everything you need to know before getting a Missouri virtual phone number.
Missouri has 5 active area codes: 314, 417, 636, 660, 816. Rozper offers virtual phone numbers in these codes, which you can browse and choose from one dashboard.
314 is Missouri's original area code, assigned in 1947. The most recent addition, 636, followed in 1999.
No. Virtual numbers are location-independent. A business based anywhere in the U.S. or internationally can get a Missouri area code and route calls to any device, team, or call center.
Missouri's capital is Jefferson City, and the state keeps Central time. Its population is about 6,196,000, across 115 counties.
Missouri's economy centers on logistics and agriculture, with Kansas City, St. Louis, and Springfield as the main business hubs. St. Louis's Gateway Arch is the tallest man-made monument in the US.
Questions about Missouri numbers? Get in touch.
// Next door
States that border Missouri
Customers and teams near the Missouriline often use a neighbouring state's codes. Here are the area codes next door.
- Arkansas area codes479, 501, 870
- Illinois area codes217, 224, 309, 312, 331, 618, 630, 708, 773, 779, 815, 847, 872
- Iowa area codes319, 515, 563, 641, 712
- Kansas area codes316, 620, 785, 913
- Kentucky area codes270, 364, 502, 606, 859
- Nebraska area codes308, 402, 531
- Oklahoma area codes405, 539, 580, 918
- Tennessee area codes423, 615, 629, 731, 865, 901, 931
Ready for a Missouri number?
Pick a Missouri area code and talk to us about setting up your number.