Introduction
The 314 area code is the telephone code for St. Louis, Missouri. It covers the independent City of St. Louis and the inner-ring suburbs of St. Louis County on Central Time — the historic core of a metro at the meeting point of the Mississippi and Missouri rivers. It has belonged to St. Louis since the first national numbering map was drawn in 1947.
Locals treat the code as a badge: it appears in music, on apparel, and in the names of community events celebrated every year.
This guide covers the territory in full: the neighborhoods and communities the code serves, the 557 overlay that now shares its footprint, the surrounding Missouri and Illinois codes, the Central Time schedule, and the industries that define the St. Louis market. It finishes with the simple modern process for putting a local number to work.
Key Takeaways
Covers where is the 314 area code in depth
Covers 314 area code location in depth
Covers 314 area code overlay in depth
Covers get a 314 phone number in depth
Explore MeraTalk's Area Codes solutions — built for carriers, resellers, and enterprises.
Learn moreWhat Is the 314 Area Code?
The 314 prefix is the North American Numbering Plan code for the City of St. Louis and St. Louis County. It was among the original codes assigned in 1947, when it covered a much larger share of Missouri. Successive splits carved off the outer regions — most recently the western metro, which became 636 — leaving the historic code concentrated on the urban heart of the region.
Seven decades of continuity have made the prefix inseparable from St. Louis identity, which is precisely why businesses still seek it out. Key facts at a glance:
- Dialing format: (314) 555-0123
- International format: +1 314-555-0123
- Time zone: Central Time (CT) — UTC−6 Standard, UTC−5 Daylight Saving
- Introduced: 1947 — one of the original 1947 codes
Where Is the 314 Area Code? Cities & Communities
The territory covers the independent City of St. Louis and the ring of municipalities that make up St. Louis County, from the Mississippi riverfront westward to the county line. Within that footprint sit some of the most storied neighborhoods in the Midwest. The four below capture the range of the region.
Downtown
Downtown St. Louis rises behind the Gateway Arch, the stainless-steel monument that frames the riverfront and defines the skyline. The district holds the ballpark, the convention center, and a growing loft population, alongside corporate offices whose numbers have carried the local prefix for generations.
Central West End
The Central West End is a historic district of grand avenues, sidewalk cafes, and galleries beside Forest Park. It borders one of the country's leading medical campuses, and its mix of clinics, boutiques, and professional practices makes it one of the busiest commercial neighborhoods in the city.
The Hill
The Hill is the city's famous Italian quarter, a tight grid of shotgun houses, bakeries, and family-run restaurants that have anchored the neighborhood for over a century. Its trattorias and specialty grocers are destination businesses, and their phones ring with reservations from across the metro.
Clayton
Clayton is the county seat and the region's second downtown, a polished business district of law firms, investment offices, and corporate headquarters just west of the city line. Its office towers concentrate much of the metro's professional-services economy in a few walkable blocks.
Communities the 314 Code Serves
The prefix covers the city and its inner-ring county suburbs — the western metro moved to 636 years ago. Anyone checking whether a local number will land in the right market can use the list below as a quick reference for the communities the code covers.
- City of St. Louis — Downtown, the Central West End, The Hill, and the riverfront neighborhoods
- Inner St. Louis County — Clayton, University City, Webster Groves, and Kirkwood
- North county — Ferguson, Florissant, Jennings, and Overland
- Shared 557 overlay territory — note the western suburbs and St. Charles County use 636, not 314
314 Overlay and Nearby Area Codes
Decades of steady demand eventually thinned the supply of available numbers, and regulators responded with the 557 overlay — a second code layered across exactly the same territory. Existing lines kept their original prefix, new assignments may carry 557, and every local call is dialed with the full ten digits. The overlay approach protected the historic code's identity, the same strategy used in other legacy markets such as Detroit's 313 area code region.
Two neighbors complete the metro picture. To the west, 636 covers the outer St. Louis suburbs — St. Charles, Chesterfield's western edge, and the fast-growing communities beyond the county. Across the Mississippi, 618 serves the Illinois side of the metro, including Belleville and East St. Louis. A single phone call routinely crosses all three territories, but the original city code remains the strongest marker of core St. Louis identity.
Get a local number in this area code with transparent wholesale pricing.
314 Time Zone
The territory observes Central Time (CT) — UTC−6 during Standard Time and UTC−5 during Daylight Saving, which runs from mid-March to early November. St. Louis shares its clock with Chicago, Kansas City, and Memphis, in the middle band of the US business day.
For companies with customers on both coasts, Central Time is a quiet operational advantage: East Coast partners are only an hour ahead, and West Coast offices are reachable through the afternoon. A local line answered on St. Louis hours fits naturally into schedules from New York to Los Angeles.
The St. Louis Economy and Business Scene
St. Louis pairs legacy industrial strength with modern research muscle. Three sectors stand out for anyone weighing a local presence in the market.
Healthcare & Plant Science
Hospitals and agtech research anchor the regional economy. Major medical campuses and university-affiliated hospital systems employ tens of thousands across the city and county, while a dense cluster of plant-science and agricultural-technology institutes has earned the region a global reputation in crop research. Startups regularly spin out of these labs and set up their first offices nearby — often beginning with nothing more than a business phone number and a small research team.
Aerospace & Defense
Advanced defense manufacturing has deep roots in north St. Louis County, where fighter aircraft and defense systems are engineered and assembled. The sector supports an extensive web of precision suppliers, engineering consultancies, and training operations throughout the metro.
Financial Services
Brokerage and banking operations give the region a strong financial backbone. A nationally known retail brokerage is headquartered in the county, joined by regional banks, asset managers, and a Federal Reserve presence downtown — institutions whose client relationships still run heavily over the phone.
Many regional operators also compare notes with peers in the 816 area code, where Kansas City businesses face similar routing choices.
How to Get a 314 Phone Number
Claiming a St. Louis number today is an online task, not a telecom project. No local office, hardware, or Missouri address is required — cloud providers hold the inventory and activate lines in minutes.
- 1Choose a provider. Pick a cloud phone service that stocks St. Louis numbers and offers the features the business needs, such as call routing, auto-attendant, and CRM integration.
- 2Pick a number. Browse the available 314 inventory and select a memorable combination that reads cleanly on business cards and websites.
- 3Activate and route. Complete verification and go live — calls ring on any device, whether a desk phone in Clayton, a mobile in Chicago, or a softphone app anywhere in the world.
The finished line appears to callers in the standard local format, (314) 555-0123, and receives international calls as +1 314-555-0123. Remote companies use the prefix to establish St. Louis credibility before signing a lease, and local businesses add lines to separate departments or track campaigns.
Dialing a 314 Number from Abroad
Reaching a St. Louis line from outside the United States follows the standard international pattern: the caller dials their country's exit code, then the North American country code 1, then the full ten-digit number. From most of Europe that looks like 00 1 314 555 0123; from mobile phones worldwide, entering +1 314-555-0123 works from virtually any network, because the plus sign automatically substitutes the correct exit code.
- From the UK and most of Europe: 00 + 1 + the ten-digit number
- From Australia: 0011 + 1 + the ten-digit number
- From any mobile phone: +1 followed by the ten digits
Businesses that receive overseas calls should print the international format alongside the local one on websites and email signatures. Suppliers in Europe or Asia can then reach a Clayton office or a downtown brokerage without guessing at exit codes, and the call connects exactly as a domestic one would. For more, see North American Numbering Plan.
Porting an Existing Number Into or Out of the Region
Number portability rules in the United States let a business keep its digits when it changes providers. A company that has printed the same St. Louis number on invoices and signage for years can move that number to a cloud phone platform without customers noticing any change — the digits stay, only the service behind them switches.
The process is initiated with the new provider, which handles the transfer request on the customer's behalf. The essentials are simple: keep the old service active until the port completes, have a recent bill or account number ready to verify ownership, and confirm the authorized contact name matches the account record. Most transfers finish within a few business days, and the line keeps ringing throughout.
Porting works in the other direction too, so a number acquired for a St. Louis campaign can later follow the business wherever it goes.
Conclusion
From the Gateway Arch to the trattorias of The Hill, the 314 prefix stitches together a region that helped build the American Midwest. It has survived every split and overlay with its identity intact, and it remains the code St. Louisans claim as their own.
For a business courting the market, a local number is one of the simplest trust signals available. Cloud activation takes minutes, calls follow the team to any device, and the caller ID does the rest — announcing St. Louis roots on every outbound ring.
Ready to get started with 314 area code?
Join thousands of businesses using MeraTalk for Wholesale Voice, VoIP, and phone number services.
Contact MeraTalk Today
