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Area code 314

Area code 314 St. Louis, Missouri

Area code 314 is one of the original 1947 area codes, in Missouri, with numbers assigned in St. Louis, Ladue, Kirkwood and 4 more places. It’s 11:12 PM there now.

State
Missouri9 area codes in Missouri
Time zone
Central11:12 PM there now
Exchanges
7837 places
Overlay
557Same area, 10-digit dialing
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Where area code 314 is

Numbers in 314 are assigned to 7 places in 2 counties: St. Louis County and St. Louis city.

St. Louis has the most, 38% of the exchanges; the rest are spread across 6 other places.

  • St. Louis296
  • Ladue286
  • Kirkwood90
  • Creve Coeur51
  • Sappington25
  • Mehlville24
  • Oakville11

Phone companies in 314

783 blocks of numbers in 314 are held by 31 phone companies. The most belong to AT&T (252), AT&T Mobility (101) and T-Mobile (96).

A mix: about 32% wireless, 34% local phone and cable and 33% other carriers, including internet phone services.

A block’s holder is the company it was first assigned to; numbers can move to other carriers since.

History and overlays

314 has been in service since 1947, when the first North American area codes were set up.

557 (since 2022) shares the same area, so a new number there can get any of these codes and local calls are dialed with all 10 digits.

45 new exchanges were assigned since 2021, the latest in May 2026.

Calling 314

It’s 11:12 PM Central time in 314 right now.

From elsewhere in the U.S., dial 1, 314 and the 7-digit number; inside the area, all 10 digits too.

Nearby area codes

Missouri has 9 area codes: 235, 314, 417, 557, 573, 636, 660, 816 and 975.

From the North American Numbering Plan Administrator’s area code and exchange records (10/22/2026) and U.S. Census place and county names. Places and companies are where number blocks were assigned, not where anyone lives or which carrier a number uses today.

Map of the 314 area code

Map of the 314 area code around St. Louis, Ladue and Kirkwood, Missouri.

Interactive map © OpenStreetMap contributors

Cities on the map

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Questions about 314

Where is area code 314?

In Missouri, covering St. Louis, Ladue and Kirkwood and other places across 2 counties.

What time zone is 314 in?

Central time. It was 11:12 PM there when this page loaded.

Is 314 an overlay?

Yes. 557 serves the same area, so dial all 10 digits for local calls.

Which phone companies have 314 numbers?

31 companies hold blocks; the most belong to AT&T, AT&T Mobility and T-Mobile. About 32% of blocks are wireless.

Is 314 running out of numbers?

Not on record. 45 new exchanges have been assigned since 2021.