About Area Code 314
- Region Code
- 314
- City
- St Louis
- State
- Missouri
- Population
- 1,100,000
- Largest City
- St Louis
- Time Zone
- Central Time
Area Code 314 — St Louis, Missouri
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Assigned in 1947 as part of the original North American Numbering Plan, 314 has long anchored calling in the St. Louis metropolitan core. As demand grew, the territory contracted through splits that created 573 (1996) and 636 (1999), concentrating the code on the city and inner suburbs. A relief overlay, 557, was implemented in the early 2020s, bringing ten-digit dialing to the region while preserving existing numbers.
Telecommunications trends often mirror local dynamics: St. Louis is a diversified river city whose economy combines legacy manufacturers with research-driven firms. The Mississippi River and major rail corridors underpin logistics, while corporate campuses, medical centers, and universities support white-collar employment. Cultural life blends Midwestern and Southern influences—heard in blues and jazz traditions, seen in neighborhood festivals, and tasted in long-standing brewing and barbecue customs. Sports loyalty around baseball and hockey is a notable social binder, and cross-river commuting ties the Missouri core to the Illinois Metro East.