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Missouri · Central Time Updated July 2026

Area Codes in Missouri

10 codes, from a 1947 original to 2022’s newest, and an 11th on the way

Missouri has 9 active area codes — from 314 in 1947 to 235 in 2024. Three serve metro St. Louis (314, 557, 636); two serve metro Jefferson City (235, 573); 417 is Springfield and its surroundings; 660 is Boonville and its surroundings. Tap any code below for its full guide: who called, cities and ZIP codes, the coverage map and the live local time.

Not sure which code is yours? Every Missouri city is covered below. Find your city ›
Area codes9
Original314 · 1947
Newest235 · 2024
Largest metroSaint Louis
Local time10:10 AM CT
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All 9 Missouri Area Codes

Every active code: tap any card for its full guide, who called, cities and ZIPs, map, spam patterns and local time.

235Advance, Altenburg, Annada36 prefixes in serviceArea code 235 guide ›314Affton, Arnold, Ballwin783 prefixes in serviceArea code 314 guide ›417Anderson, Asbury, Ash Grove711 prefixes in serviceArea code 417 guide ›557Affton, Arnold, Ballwin76 prefixes in serviceArea code 557 guide ›573Advance, Altenburg, Annada786 prefixes in serviceArea code 573 guide ›636Affton, Arnold, Augusta432 prefixes in serviceArea code 636 guide ›660Adrian, Albany, Alma514 prefixes in serviceArea code 660 guide ›816Adrian, Agency, Amazonia785 prefixes in serviceArea code 816 guide ›975Adrian, Agency, Amazonia22 prefixes in serviceArea code 975 guide ›
Got a call from a Missouri number you don’t recognize? Open that code’s guide above for its full prefix lookup. AT&T ActiveArmor® blocks spam automatically, included with AT&T wireless plans.Requires compatible device/service and download of the AT&T ActiveArmor® app. Other terms & restrictions apply. May not detect all threats and may block wanted calls. Some features require Advanced mobile security ($7/mo.). See how ActiveArmor works

Why Metro St. Louis Has 3 Area Codes

When a region uses more numbers than one code can hold, new codes are overlaid on the same territory rather than forcing anyone to change numbers. Metro St. Louis now uses 314, 557 and 636: same neighborhoods, ten-digit dialing, and every one of them covered by its own guide above.

Missouri Area Codes by City

The largest Missouri communities and the area codes that serve them. Every city links to its local AT&T internet page.

CityArea code(s)
Springfield417
Kansas City816 975
Columbia235 573
St. Louis314 557 636
Florissant314 557 636
Jefferson City235 573
Lees Summit816 975
St. Joseph816 975
Arnold314 557 636
Ballwin314 557 636
Belton816 975
Blue Springs816 975
Bolivar417
Boonville660
Branson417
Brentwood314 557 636
Bridgeton314 557 636
Camdenton235 573

How Missouri Got Its Codes

Every Missouri area code, in the order it entered service. Splits carved new regions; added codes overlay existing ones, which is why ten-digit dialing is standard.

In serviceCodeHow it arrived
1947314One of the original area codes of 1947
1947816One of the original area codes of 1947
1950417Original assignment for its region
1996573Added to the 314 region
1997660Split from 816
1999636Split from 314
2022557Added to the 314 region
2023975Added to the 816 region
2024235Added to the 573 region

Source: NANPA NPA database, July 2026. Regenerated monthly.

Missouri Area Code Map

Every active Missouri area code at a glance, anchored to the metro each one serves. Tap any code above for its detailed coverage map.

Map of Missouri area codes with anchor cities↓  Printable PDF

Open the printable Missouri area code map (PDF) — poster format with a QR code back to this page.

AT&T IN GEORGIA

Internet, wireless & stores across the state

All AT&T services in Missouri Home internet in Missouri Wireless plans AT&T stores in Missouri

AT&T Home Internet in Missouri

AT&T home internet is available across Missouri, checked address by address; every area code guide above lists its cities and what’s offered there.

No data capsNo annual contractNo equipment fees

AT&T Fiber: Ltd. avail/areas. Speeds based on wired connection. Actual speeds vary. For 5-GIG, single device wired speed maximum 4.7Gbps. For more info., visit att.com/speed101.

Check availability at your addressAll AT&T services in Missouri ›

Start with home internet in Missouri, or pair it with wireless in an internet + wireless bundle.

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Home internet across MissouriCheck your address ›

AT&T Wireless in Missouri

AT&T’s 5G network covers most of Missouri. ActiveArmor® spam blocking is included with every unlimited plan, your number stays yours when you move between Missouri codes, and great cell phone deals in Missouri are a tap away.

5G across MissouriActiveArmor® includedKeep your number

AT&T may temporarily slow data speeds if the network is busy. 5G req’s compatible plan & device. Coverage not available everywhere. Learn more at att.com/5Gforyou.

Shop wireless plansBring your number ›

See the AT&T wireless coverage map for Missouri ›

Woman smiling at her phone on a downtown street
Stay connected across MissouriShop wireless plans ›

AT&T Stores Across Missouri

From the Saint Louis metro to St. Louis, Springfield and beyond, walk in for switching, porting, upgrades and hands-on help. Every area code guide lists its nearest stores.

Find your nearest AT&T store

Find stores in: Saint Louis · St. Louis · Springfield · Columbia · Kansas City

AT&T store employee helping a customer with her phone
Real help from real people across MissouriFind a store ›

Area Codes in Neighboring States

Iowa area codesIllinois area codesKentucky area codesTennessee area codesArkansas area codesOklahoma area codesAll 50 states ›

Missouri Area Code FAQ

How many area codes does Missouri have?
Missouri has 9 active area codes: 235, 314, 417, 557, 573, 636, 660, 816, 975. Each links to a full guide above.
Which Missouri area code is mine?
Tap any code above to see the communities it serves; each guide lists cities with ZIP codes and a coverage map.
Who called me from a Missouri number?
Open that code's guide and check the prefix lookup: every assigned prefix with its carrier. No voicemail? Let it go — legitimate callers leave messages.
What time zone is Missouri in?
Missouri is primarily on Central time. The live local time is shown at the top of this page.
Does AT&T offer service in Missouri?
Yes — home internet, wireless and retail stores across Missouri. Availability is checked address by address.
Sources: prefix and carrier assignments from the NANPA central-office code registry; population figures from the U.S. Census Bureau; spam-pattern indicators from FTC Do Not Call filings and AT&T ActiveArmor® network telemetry. Facts are rebuilt from these sources at build time; the page regenerates monthly.
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