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US area code · Missouri

Area code 314

Where the 314 area code is, its overlay and how to dial a +1 314 number from anywhere.

CoversKirkwood, MissouriTime zoneCentral (CT)TypeOverlay
Quick answer

The 314 area code is in Kirkwood, Missouri, United States (Central (CT)). To call from abroad: +1 314 555-0123. It is an overlay, so all 10 digits are dialled.

StateMissouri
Main areaKirkwood
Time zoneCentral (CT)
TypeOverlay
10-digit dialingRequired
In service since01-Jan-1947

The 314 area code is a geographic North American Numbering Plan (NANP) code covering Kirkwood, Missouri. It has been in service since 01-Jan-1947 and sits in the Central (CT) time zone.

Overlay 314 shares its region

Several area codes cover the same geographic area, so two neighbours can have different codes. Because of the overlay, you must dial all 10 digits (area code + number) even for local calls.

314557

How to dial a 314 number

From abroad+1 314 555-0123
Within the US / Canada1 314 555-0123
Locally (same area)314 555-0123

Cities in the 314 area code

A 314 number is usually in one of these places in Missouri — 1 county.

AfftonFergusonFlorissant Saint LouisHazelwood Saint LouisKirkwoodMaryland Heights Saint LouisMehlvilleOakvilleSpanish LakeSt. LouisUniversity CityWebster Groves

Other Missouri area codes

235417557573636660816975

Frequently asked questions

Where is the 314 area code?

The 314 area code is in Kirkwood, Missouri, United States (Central (CT)).

Is 314 an overlay area code?

Yes. 314 overlays the same region as 557, so callers dial all 10 digits.

Do I have to dial 10 digits for 314?

Yes — dial the area code plus the seven-digit number.

How do I call a 314 number from another country?

Dial your exit code (or +), then 1, then 314, then the number: +1 314 555-0123.

Source: NANPA numbering plan. An area code covers a region, not a precise address — a 314 number does not pinpoint a street or ZIP code.

Missed a call from +1 314?

In the 30 days to September 24, 2026, 934 unwanted calls showing a 314 number were reported to the US Federal Trade Commission, 61% of them recorded messages or robocalls. That puts 314 at #50 of 670 area codes reported.

Other448
Medical & prescriptions154
Dropped call or no message97
Calls pretending to be government, businesses, or family and friends84
Before you call back
  • If you do not know anyone in Missouri, do not call back: a genuine caller will leave a message or send a text.
  • Scammers fake the number shown on caller ID, so a 314 number can hide a caller anywhere in the world.
  • Never give a code received by text or a bank detail to an unknown caller. In the US, calls can be reported at reportfraud.ftc.gov.

Who issues +1 314 numbers

Phone companies hold blocks of numbers in each area code. The main holders in 314:

Southwestern Bell 255New Cingular Wireless PCS, LLC 101T-Mobile USA, Inc. 94Cellco Partnership Dba Verizon Wireless 53Mcimetro Access Transmission Services LLC 51Onvoy, LLC 50

About 31.1% of the 800 prefixes in use belong to mobile carriers: a 314 number is often a cell phone, and it may have moved to another carrier since.

Sources: FTC Do Not Call reported calls (numbers as reported by consumers, not verified), NANPA central office code assignments.

All US area codes United States +1 Map of area code 314 — cities & rate centres