St. Louis, Missouri
Central Time Zone (UTC-6) · MO · —
About Area Codes in St. Louis, Missouri
St. Louis, Missouri is served by 2 area codes: 314, 557. When multiple area codes serve the same geographic area, it typically indicates overlay codes have been added to accommodate growing demand for phone numbers. All local calls within St. Louis require 10-digit dialing. The city is in the Central time zone (UTC-6).
Other cities in area code 314
Frequently Asked Questions
What area code is St. Louis, Missouri?
St. Louis, Missouri uses area codes 314 and 557.
What time zone is St. Louis in?
St. Louis is in the Central time zone (UTC-6).
Do I need to dial 10 digits when calling St. Louis?
Yes, all local calls in St. Louis require 10-digit dialing because the area is served by multiple overlay area codes.
When was area code 314 created?
Area code 314 is one of the original 86 area codes established in 1947 as part of the North American Numbering Plan (NANP).
What cities share area code 314 with St. Louis?
Other cities sharing area code 314 with St. Louis include Bridgeton, Clayton, Ferguson, Florissant, Hazelwood, among others.
St. Louis, MO · Central Time Zone