The 314 area code serves St. Louis, Missouri, and its inner-ring suburbs, including Florissant, Kirkwood, University City, Maryland Heights, Ferguson, and Webster Groves. The area code ranks among the original 86 area codes created in 1947 and operates in the Central Time Zone. Today, area code 314 shares its geographic area with area code 557 as an overlay, so callers must use 10-digit dialing for all local calls.
What Is the 314 Area Code?
314 code area serves the St. Louis metropolitan region in eastern Missouri. It covers St. Louis City, most of St. Louis County, and parts of St. Charles County. If you receive a call or text from a 314 number, the caller most likely lives in or near the St. Louis area.
Key Facts About Area Code 314
| Detail | Information |
|---|---|
| State | Missouri |
| Primary city | St. Louis |
| Region covered | St. Louis City, most of St. Louis County, parts of St. Charles County |
| Time zone | Central Time (CT / CDT) |
| In service since | January 1, 1947 |
| Overlay code | 557 (added August 12, 2022) |
| Dialing format | 10-digit local dialing required |
| Neighboring area codes | 573, 636, 618 |
What Cities and Suburbs Does 314 Cover?
The area code 314 location footprint centers on the city of St. Louis and stretches across its close-in suburbs. Major communities served include:
Outlying parts of the greater metro area, including many St. Charles County communities, now fall under area code 636, which was carved out of the original 314 territory in 1999.
The History of the 314 Area Code
Understanding why 314 area looks the way it does today requires a quick timeline:
Because of the 557 overlay, everyone in the 314/557 region must dial all 10 digits (area code plus number) for every local call, even calls to a neighbor with the same area code.
Why Do 314 Numbers Matter for Businesses?
For businesses targeting the St. Louis market, a 314 phone number carries real local-credibility value:
Businesses that aren’t physically located in St. Louis can still obtain a 314 number through VoIP or virtual phone number providers to establish a local presence for sales, support, or marketing purposes.
How to Dial a 314 Number
Is Area Code 314 Associated With Scam Calls?
Like any widely used area code, scammers sometimes spoof 314 numbers to appear local and increase the chance of getting a call answered. A call showing a 314 number doesn’t guarantee it’s a legitimate caller in St. Louis. If you receive suspicious calls, especially involving requests for payment, personal information, or urgent action, treat the caller ID with caution, don’t share sensitive information, and consider blocking the number or reporting it to the FTC.
Frequently Asked Questions (FAQs)
Conclusion
The area code 314 is more than a set of digits; it’s a direct link to St. Louis’s identity, dating back to 1947 as one of the first area codes in North America. While its boundaries have narrowed over the decades through the 1996 and 1999 splits, and its numbering capacity now shares space with the 557 overlay, 314 remains the defining phone code for St.
