314 area code
St. Louis area, Central Time.Area code 314 covers St. Louis, La Due, Kirkwood and 4 more places in Missouri, on Central Time. 557 covers the same area.
Right now in St. Louis
Central Time (CST, UTC-6; CDT, UTC-5 in summer)
Calling hours: Every day, 8 AM to 9 PM (the federal rule)
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Where 314 numbers come from
Numbers are issued by rate center, a billing area named for its main town. 314 has 7. Each one's share is how many 314 numbers start there. Its biggest metro area is St. Louis, MO-IL.
- St. Louis38%
- La Due37%
- Kirkwood11%
- Creve Coeur7%
- Sappington3%
- Mehlville3%
Also: Oakville
Share of exchanges (blocks of 10,000 numbers). Source: NANPA rate center and exchange reports, November 10, 2026
When can you call a 314 number?
Sales calls to homes and cell phones have legal hours, set by the federal rule. Hold every 314 number to them, since you can't tell a work line from a personal cell.
What applies to 314Every day, 8 AM to 9 PM
- Federal (TCPA and FTC rule)Every day, 8 AM to 9 PMCalls to residential and mobile numbers. Most calls to businesses are exempt from the FTC's rule.47 CFR 64.1200(c)(1); 16 CFR 310.4(c) (opens in a new tab)
Local time comes from the area code, not from where the person is today. Mobiles keep their number when they move. Calling hours here are a guide, not legal advice. Every state's calling hours, with sources
314 and 557
314 is one of the original area codes from 1947, and 573 and 636 were later split off from it. 314 and 557 cover the same area, so new numbers can get either code and neighbors can have different area codes. 314 holds 91% of the area's exchanges; 557 holds the rest. Local calls take all 10 digits.
- 1947314 starts
- 1996573 split off
- 1999636 split off
- 2022557 overlay
Source: NANPA area code database
Calling a list of 314 numbers?
Paste it into the free phone number validator. It checks every number, finds each one's time zone and sorts the list by who you can call right now.
314 area code FAQ
What area code is 314?
314 is a Missouri area code for St. Louis, La Due, Kirkwood, Creve Coeur and 3 more places.
What time zone is the 314 area code in?
Central Time (CST, UTC-6; CDT, UTC-5 in summer).
Is 557 the same as 314?
Same area, different code. 314 and 557 cover the same area (an overlay), so new numbers can get any of them and local calls take all 10 digits.
What are the calling hours for 314 numbers?
Every day, 8 AM to 9 PM, local time, under the federal rule.
When did the 314 area code start?
In 1947: it's one of the original area codes.
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