314 Area CodeSt. Louis, MO
Area code 314 covers St. Louis and nearby communities in Missouri, in the Central Time (CT) zone, home to about 1 million people across 91 cities. It overlays 557 and 636, so the region uses several codes and every local call needs all ten digits.
Overview
- Major City
- St. Louis
- State
- Missouri (MO)
- Timezone
- Central Time (CT)
- Current Time
- Overlay
- Yes – shares area with 557, 636
Overview of the 314 Area Code
What is the 314 area code?
The 314 area code serves St. Louis, Missouri, alongside other established area codes. When you see a 314 number, it indicates a local number within this geographic area.
Why was area code 314 created?
The 314 area code was introduced as an overlay to add numbers in St. Louis once the existing area codes 557 and 636 began to run out of available prefixes. It added a new supply of numbers without requiring current residents to change their existing digits.
Geographic Coverage of the 314 Area Code
The 314 area code serves St. Louis and surrounding areas in Missouri. It operates within the Central Time (CT) time zone. It complements the coverage of area codes 557 and 636. This area code covers several key cities, including:
- St. Louis
- Florissant
- Chesterfield
- Oakville
- University City
- Kirkwood
Got a call from a 314 number? It came from St. Louis, MO. Since 314 overlays with 557 and 636, every local call in the region needs all ten digits to land on the right line. Inside 314, St. Louis holds about 28% of the population; the rest is split across 90 smaller cities.
St. Louis Area Codes Overview
St. Louis is served by multiple area codes, reflecting its telecommunications needs. The 314 area code operates alongside 557, 636. Here are the area codes serving this region:
The introduction of the 314 area code helped prevent number exhaustion, ensuring a continuous supply of phone numbers across the geographic area.
What cities does area code 314 cover?
| City | State | Population | % of Area Code | % of City |
|---|---|---|---|---|
| St. Louis | MO | 279,695 | 16% | 100% |
| Florissant | MO | 51,290 | 3% | 100% |
| Chesterfield | MO | 49,465 | 2% | 21% |
| Oakville | MO | 36,143 | 4% | 99% |
| University City | MO | 34,349 | 1% | 100% |
| Kirkwood | MO | 29,348 | 2% | 99% |
| Mehlville | MO | 28,380 | 2% | 100% |
| Maryland Heights | MO | 27,671 | 6% | 100% |
| Hazelwood | MO | 24,951 | 4% | 100% |
| Webster Groves | MO | 23,525 | 1% | 100% |
* Sources: Population – U.S. Census Bureau PEP, Vintage 2024 (SUB-IP-EST2024-POP). Area code assignments – NANPA CO Code data. See our data methodology.
Has area code 314 been reported for unwanted calls?
Yes – 788 unwanted-call complaints were reported to the FTC for numbers showing a 314 area code (May 29 – Jul 2, 2026).
- 38% robocalls
- ↑ 16% vs prior period
Most-reported subjects
- Other55%434
- Medical & prescriptions14%112
- Calls pretending to be government, businesses, or family and friends10%81
* Caller ID is easily spoofed, so these figures reflect the number shown on caller ID, not the caller's true location – an area code alone never identifies a caller. The FTC does not verify the facts in these complaints. Source: FTC Do Not Call (DNC) Reported Calls Data, retrieved 2026-07-05.
Which prefixes and exchanges belong to area code 314?
78% assigned to a telco
- 67% Landline
- 33% Wireless
- 0% Unknown
| Prefix | Usage | Carrier |
|---|---|---|
| (314)200- | Landline | Charter Fiberlink - Missouri |
| (314)201- | Wireless | T-Mobile Usa |
| (314)202- | Wireless | Verizon Wireless |
| (314)203- | Wireless | T-Mobile Usa |
| (314)204- | Wireless | Usa Mobility Wireless |
| (314)205- | Landline | Southwestern Bell |
| (314)206- | Landline | Southwestern Bell |
| (314)207- | Landline | Onvoy |
| (314)208- | Wireless | New Cingular Wireless Pcs |
| (314)209- | Landline | Southwestern Bell |
Frequently Asked Questions about the 314 Area Code
Who called me from a 314 number?
A 314 number is assigned to St. Louis, Missouri, so a call may come from there. But caller ID is easy to fake, and scammers often spoof a local 314 code to look nearby, so a 314 number doesn't prove the caller is local. Recently, 788 unwanted-call complaints were reported to the FTC for numbers showing the 314 code (38% flagged as robocalls). If you don't recognize the number, let it go to voicemail; a real caller will leave a message.
Is 314 a scam area code?
No area code is a scam on its own. 314 is a normal, officially assigned code for St. Louis, Missouri. Spam callers spoof local codes to raise the odds you answer, so 314 on your caller ID says nothing about who is really calling. Recently, 788 unwanted-call complaints were reported to the FTC for numbers showing the 314 code (38% flagged as robocalls). Judge the call itself, not the area code.
Why do I keep getting calls from the 314 area code?
Repeated calls from different 314 numbers are usually spoofing: a robocaller rotates through 314 numbers so each call looks local and slips past simple blocks. Recently, 788 unwanted-call complaints were reported to the FTC for numbers showing the 314 code (38% flagged as robocalls). Blocking one number rarely helps; voicemail screening, your carrier spam filter, and the Do Not Call Registry work better.
Should I answer an unknown 314 number?
If you aren't expecting a 314 call, let it ring to voicemail. Legitimate callers leave a message, most robocallers hang up when no one picks up, and answering can mark your number as active and bring more calls.
How do I block calls from the 314 area code?
Block a single 314 number from your recent-calls list (iPhone: tap the number, then Block this Caller; Android: tap the number, then Block or report spam). To cut the volume, turn on Silence Unknown Callers on iPhone or spam protection on Android, enable spam filtering from your carrier, and register at DoNotCall.gov. Blocking the entire 314 code also stops legitimate local calls, so use it only as a last resort.
Where is area code 314?
Area code 314 covers St. Louis and the surrounding area in Missouri, spanning 91 cities with about 1,006,619 residents. It shares its area with overlay codes 557, 636.
Is 314 a real area code?
Yes. 314 is an active code in the North American Numbering Plan, assigned by NANPA and in service for St. Louis, Missouri. A real code can still show up on spoofed spam calls, so treat unknown 314 calls with normal caution.
What timezone is the 314 area code in?
The 314 area code is in the Central Time (CT). Because a number can be kept when someone moves or switches to VoIP, a specific 314 caller may not be in that zone.
How do I call a 314 number from abroad?
From outside the US, dial your country's exit code, then 1 (the US country code), then 314 and the seven-digit number. From a mobile phone you can usually just enter +1 314 followed by the number and let the phone add the exit code for you.